Win32 Application Supersedence

HOW TO: Update Win32 apps with Endpoint Manager

Updating Win32 applications with Endpoint Manger is a cumbersome task.  Newer versions of applications wont install if a previous versions of the application is present on the device. The first step is to remove the application from the device and then creating a new deployment. This could result that the user isn’t able to use a particular application since the admin had to wait for the uninstall deployment to complete. Or maybe you created some custom installation which would remove the application and then install the newer version of that application. Either way the process was not easy..

Microsoft has now introduced a new function called Win32 app Supersedence, which enables you to easily update or supersede newer applications. This article will describe the new functionality and how to use it in your environment. At the moment of writing this article the functionality is still in preview, so it might be subject to change.

Scenario

Let’s say you have deployed the Citrix Receiver application via a Win32 Endpoint Manager deployment. The Citrix Receiver applications is being replaced by the new Citrix Workspace application and you need to deploy the Citrix Workspace application to the devices which are being managed by Endpoint Manger.

Initial Deployment

For the initial deployment an IntuneWin package was created (if you’re interested in how to create one view this article) and deployed via Endpoint Manger. The applications were successfully installed on all the clients.

One topic that has now become more important is the ability to know what version is installed. How can one identity which version that is active on the client. The key in this whole process is the ability to identify an unique value that determines the version of the application. Maybe the version number can be found within the name of the .exe or can the version be found in the registry. For Citrix the version can be found in the registry. In the path Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Citrix\InstallDetect\{A9852000-047D-11DD-95FF-0800200C9A66} there is the value DisplayVersion which holds the value of the installed Citrix Receiver. This value can be used in the Detection rules to validate whether or not the application is installed. So when deploying your applications put some extra time in detecting the version of your application, which will make your life easier in the long run. How to use these detections rules I will show later on.

Supersedence

You have created a new package for the Citrix Workspace application and are ready to deploy the package via Endpoint Manger. Go to Endpoint.microsoft.com >Choose Apps > Windows > Add > For app type select Windows app (Win32)

Select your new package and fill out the necessary app information.

At the program settings fill in your install and uninstall commands. Make sure the also the uninstall command works as expected. This uninstall command can be used by the Supersedence functionality depending on your update strategy. I will explain this behavior later on in this article.

The detection rules are used to determine if an application is installed. As mentioned earlier it would be wise to use a value that the unique for the application and the version of that application. If there is no distinct difference between the two versions Endpoint Manger won’t be able to determine which application to install. For this article I’m using the registry detection rule.

  • Key path: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Citrix\InstallDetect\{A9852000-047D-11DD-95FF-0800200C9A66}
  • Value name: DisplayVersion
  • Detection Method: String comparison
  • Operator: Equals
  • Value: 19.9.0.21

We will skip the Dependencies tab and go straight to the new Supersedence tab. Here you will be able to select the application that is being superseded by the new application. In our case this is the Citrix receiver version 14.12.0.18020.

600

You now have the option to select yes or no at the Uninstall previous version. When to use what option? When you choose to uninstall the previous application Endpoint Manger will use the uninstall command configured in your Endpoint Manger Deployed, in the example uninstall.cmd. This option can be used if you completely replace the application with a new application, let’s say Citrix Receiver with the Windows Virtual Desktop client. Or you can use the uninstall feature to completely reconfigure the new application. In the Supersedence configuration this option is referred as Replace. If you enabled toast notifications the user will also be informed that the application is begin uninstalled and the new application is begin installed.

If you chose not to uninstall the application Endpoint Manger will try to update the application with the newer version. For this to function the application installer needs to be able to update from an older version. This way any configured settings should be honored as long as the application support this. In the Supersedence configuration this option is referred as Update. If you enabled toast notifications the user will also be informed that the application is begin updated and the new application is begin installed.

What option to choose really depends on your application. In many cases updating the application would be preferable, but replacing the applications can also have its advantages. As always the answer would be, it depends. So make sure to test and validate before going into production with the new application.

More information

Endpoint Manager and Windows Defender Application Guard

HOW TO: Deploy Windows Defender Application Guard with Endpoint Manager

In part 2 of the series, I will be taking a closer look at Windows Defender Application Guard (WDAG), specifically for Edge. Not to confused with Windows Defender Application Control (WDAC). Essentially WDAG runs application in a virtualized environment on your Windows 10 device. This way the operating system is protected from any applications that try to interfere with the system.

For Edge, WDAG helps to isolate untrusted websites. By isolating browsers users can safely browse the web without having to worry that they accidently end up on a site that they are not supposed to be on. This isolation happens within a Hyper-V-enabled container. This container is separate from the host operating system. Meaning that if a website turns out to be malicious the host device is protected, and the attacker cannot get the data.

Today this article is about Edge, more specifically the new Chromium version, but these same settings also work for the older Edge and even Internet Explorer. This level of isolation is also available for Microsoft Office, but this will not be covered today.

Other articles in the series:

  1. Windows Defender Application Control
  2. Windows Defender Application Guard
  3. Windows Defender Credential Guard
  4. Windows Defender Device Guard

Prerequisites

  1. A physical test client (64-bit, Virtualization options, minimum of 8GB), joined and enrolled in Endpoint Manager
  2. Windows 10 Enterprise currently supported version
  3. Microsoft subscription with Endpoint Manager

Enable Windows Defender Application Guard

To enable WDAG go to endpoint.microsoft.com, select Devices > Configuration Profiles > New Profile and select Windows 10 and later. For profile select Endpoint Protection.

Fill out the basic information and continue to the next step. Select Microsoft Defender Application Guard to reveal the options. I have applied the following settings, tailor them to your need if needed. In the link you can find the explication of all these settings. If you want to provide a nice experience for your users make sure to enable retain user generated browser data. This way cookies and preferences are saved. Finally apply the policy to a group.

Network boundaries

The next question is how to control what sites are blocked and what site are considered as trusted. The documentation of Microsoft is not particularly clear on this point, but is hidden way in one of the lines of text. Within Endpoint manager you have the options to create a Configuration Profile specifically for network boundaries.

To create a profile go to Devices > Configuration Profiles > New Profile and select Windows 10 and later. For profile select Network boundary. Depending on what you want to whitelist there are special rules and formats you need to apply by.  Also take into account if you want to use wildcards or specific domains. See the explication of Microsoft how to whitelist certain domains. See the explination on how to whitelist domains:

ValueNumbers of dots to the leftMeaning
contoso.com0Trust only the literal value of contoso.com.
www.contoso.com0Trust only the literal value of www.contoso.com.
.contoso.com1Trust any domain that ends with the text contoso.com. Matching sites include spearphishingcontoso.com, contoso.com, and www.contoso.com.
..contoso.com2Trust all levels of the domain hierarchy that are to the left of the dot. Matching sites include shop.contoso.com, us.shop.contoso.com, www.us.shop.contoso.com, but NOT contoso.com itself.

Here are some boundaries that I have added for this article. Most of the resources are Microsoft cloud services, but of course I also added my own website as a safe website.

Network boundary
Cloud Resourcesportal.office.com|tasks.office.com|protection.office.com|meet.lync.com|teams.microsoft.com
Cloud Resourcesoutlook.office.com|outlook.office365.com|portal.office.com
Cloud Resources/*AppCompat*/
Cloud Resourcescontoso.sharepoint.com| contoso-my.sharepoint.com| contoso-files.sharepoint.com
Neutral Resourceslogin.windows.net,login.microsoftonline.com
Neutral Resources.stephanvdkruis.com,.microsoft.com

Final result:

So now you configured WDAG, but what is happening on the background? By enabling WDAG the Windows Defender Application Guard feature is installed on the client. This installation requires a restart so the next time a user turns off its device the feature will be installed. After the feature is live users can start their browser and at first nothing is different then what they are used to. If they immediately start their browser, they might see an initialization popup meaning that the container is being provisioned.

They can go to any trusted site or cloud resources that have been defined as trusted in the boundary policy. However as soon as they try to go to an untrusted website a secure isolated browser is started. See the example below when we browse to google.com.

Endpoint Manager and Windows Defender Application Control

HOW TO: Deploy Windows Defender Application Control with Microsoft Endpoint Manager

Windows 10 has a variety of security features build in. These features are not enabled by default, but if configured correctly they can significantly increase the security of the devices. The main advantage of Windows 10 Enterprise are the security features. These security features ‘harden’ the operating system. By hardening your OS, you protect yourself and the Enterprise against viruses, ransomware, and possible hackers. This blog series explains the different “Defender” functionalities that are available in Windows 10 Enterprise and how to configure them by using Microsofts Endpoint Manager (Intune).  

Microsoft always likes to rebrand their functionalities, and the name defender is now used generally for all the security features, not only covering Windows 10. You can think of Defender for Endpoint, Defender for Azure etc. This is also true for the functionalities of this blog series. Windows Defender Application Control is the new name for services which were once called Application Control Guard, or even Configurable Code Integrity (CCI).

This series touches upon the following subjects:

  1. Windows Defender Application Control
  2. Windows Defender Application Guard
  3. Windows Defender Credential Guard
  4. Windows Defender Device Guard

Prerequisites

  1. A physical test client with Windows 10
  2. Microsoft subscription with Endpoint Manager

Windows Defender Application Control

Simply stated: Windows Defender Application Control (WDAC) controls whether an application may or may not run on a Windows 10 device. If the application is trusted the application can run, otherwise the application is blocked. There is a lot more to it of course but in essence this is what is does. Some may remember AppLocker which was introduced in Windows 7 and it allowed organization to control which applications could run on a device. If stated like this the functionalities of AppLocker and WDAC are very alike, but WDAC takes it a lot further. Not only does WDAC now has the capability to also control drivers, it can also make use of Microsoft’s Intelligent Security Graph. By using the Intelligent Security Graph, you do not have to whitelist applications individually, but you automatically trust the application is Microsoft trusts the application. This will save you a lot of time maintaining the WDAC policies. Furthermore, you have the option to automatically approve applications that have been deployed by using software distribution solutions, such as Microsoft Endpoint Manger.

Securing your environment by building and maintaining WDAC policies or any other security solution will take time. The policies you create will change over time since applications and other software change. You should understand that this is not a one-time configuration, and this should be evaluated on a regular basis. Before you start implementing WDAC I would recommend to start by reading and understanding the documentation of Microsoft. Make sure that the requirements of your business needs are clear.

There are so many variables that go into designing this solution that it is impossible to cover all the steps. This series of articles should give you a basic understanding on how to use these security features to your advantage. What are the high level steps in this article:

  1. Create a baseline policy
  2. Update baseline policy
  3. Test a WDAC policy
  4. Deploy a WDAC Policy
  5. Monitor your WDAC Policy
  6. Enforcing WDAC policy

In this article we create a policy for a fully managed device. You can also create policies for lightly managed devices. The difference between the two is that with fully managed devices all the software installed on the device is managed by IT and users cannot install any applications. On lightly managed devices users can install applications. If you are planning to start with WDAC it is recommended to start by treating your devices as if they are lightly managed. After that slowly build up the security around the device until they are “fully managed”.

1.      Create a baseline policy

You start with a baseline. Creating a baseline policy depends on what type of device you are using. Each type of device has its own drivers and specifications, depending on the manufacturer of the device. So, it is important to capture baseline policies for each type of device. If you have multiple types of devices you can use each baseline for the specific device type, or you can merge the baseline into one baseline policy which you can then use for all of them. Microsoft has provided some example policies in C:\Windows\schemas\CodeIntegrity\ExamplePolicies. For this article we start from scratch.

Take a Windows 10 device which is as clean as possible to start the inventorying phase. To start use the following PowerShell command. This command will scan the entire device and creates a baseline XML. This will take some time to complete.

$CIPolicyXML = "C:\temp\WDAC_Policy_DellLatitude5500.xml"
New-CIPolicy -MultiplePolicyFormat -filePath $CIPolicyXML -ScanPath C: -level FilePublisher -UserPEs -Fallback Hash

Powershell Explained:

-MultiplePolicyFormatYou can add the -MultiplePolicyFormat parameter when creating policies which will be deployed to computers which are running Windows build 1903+.
-filePathWhere to save the xml
-ScanPath C:What directory do you want to scan
-level FilePublisherSpecifies the primary level of detail for generated rules
-UserPEsCommand scans for user-mode executables (applications) along with kernel-mode binaries such as drivers and creates rules at the Publisher level.
-Fallback HashTo catch any applications not discovered using the primary file rule level specified by the -Level parameter

2. Update baseline policy

Scanning your device will take a considerable time. When the scanning is complete you can add extra rules to the XML file. Understand WDAC policy rules and file rules (Windows 10) – Windows security | Microsoft Docs

  • Option 13 is used so that applications installed by a software distribution solution are automatically allowed.
  • Option 14 enables the use of the Microsoft Intelligent Security Graph so that well known applications are automatically approved.
  • Option 16, so no reboot is required when applying WDAC policies.
  • Option 17, so you can combine policies.
  • Activating Hardware Virtualized Code Integrity and set it to enabled. To be used with care, some applications and drivers are incompatible with HVCI and can cause software malfunction and blue screens.
Set-RuleOption -FilePath $CIPolicyfileXML -Option 13
Set-RuleOption -FilePath $CIPolicyfileXML -Option 14
Set-RuleOption -FilePath $CIPolicyfileXML -Option 16
Set-RuleOption -FilePath $CIPolicyfileXML -Option 17
Set-HVCIOptions -Enabled -FilePath $ CIPolicyXML

3. Test a WDAC policy

When your XML has finished building you can convert the XML to a CIP file. First open the XML file and copy the <PolicyID> , this can be found at the bottom of the XML file and looks something like {DF4B2E6F-F05F-4D3C-AE70-000F6CCD445C}. The name of the CIP file must match the Policy GUID. To create a CIP file run:

ConvertFrom-CIPolicy -XmlFilePath $CIPolicyXML -BinaryFilePath “C:\temp\{DF4B2E6F-F05F-4D3C-AE70-000F6CCD445C}.cip”

The CIP file is now ready to be tested. Copy the CIP file to C:\Windows\System32\CodeIntegrity\CIPolicies\Active and reboot the machine.

The WDAC policy was created  in audit mode, meaning that no applications will be blocked. However, the event log will show if an application would have been blocked if the policy were being enforced. In the Event Viewer under Applications and Services Logs > Microsoft > Windows > Code Integrity > Operational you will see all the warnings. Make sure to run different application and check the event viewer for warnings and errors.

4. Deploy WDAC policy – pilot

Before this section explains how to deploy WDAC policies with Endpoint Manager, a little side step. I was preparing this blog by reading documentation and trying to the deploy the WDAC policy in my lab. I’ve followed the documentation from Microsoft Deploy Windows Defender Application Control (WDAC) policies by using Microsoft Intune (Windows 10) – Windows security | Microsoft Docs. Everything went fine until I was not able to upload the bin file that was created. Every time I tried to create the policy I received the error: Unable to save due to invalid data. Update your data then try again: Exception has been thrown by the target of an invocation. After a while I found this article stating that OMA-URI policies with payload over 350k bytes were no longer supported Support Tip: Custom OMA-URI’s not always applying to Windows 10 Devices – Microsoft Tech Community . Well the payload for a WDAC policy is way bigger then 350k bytes so that would explain why I wasn’t able to add the policy. Even by stripping a WDAC policy to its bear minimum it would still be bigger than 350k bytes… I’m hoping this will be resolved in the future, so I will leave the original procedure in place, but also provide an alternative method to deploy the WDAC policy.

Original method

You have created a baseline policy and tested the policy on a device. Ideally you want to test the policy on multiple devices which are being used by multiple people within your organization. Running a pilot will better determine if your baseline policy fits the business needs. So, its time to deploy the policy to several devices by using Configuration Manager.

To deploy the policy with Endpoint manager the policy first must be converted to a bin file.

ConvertFrom-CIPolicy -XmlFilePath $CIPolicyXML -BinaryFilePath “C:\temp\{DF4B2E6F-F05F-4D3C-AE70-000F6CCD445C}.bin”
  • In Endpoint Manager go to Configuration Profiles and add a new policy. For platform select Windows 10 and later for profile select Custom.
  • Give your policy a name, and go to the next step
  • In configuration settings Add a new OMA-URI setting
    • Provide a clear name
    • OMA-URI is ./Vendor/MSFT/ApplicationControl/Policies/<POLICYID> /Policy. Here you replace <POLICYID> with the value of the policy ID without the brackets
    • For Data type select Base64 (file) and upload the bin file
  • Assign the deployment to a group with test devices / users

Alternative Method

For the alternative distribution method, we are going to use the IntuneWinAppUtil.exe utility from Microsoft. The goal is to copy the CIP file to C:\Windows\System32\CodeIntegrity\CIPolicies\Active folder. However this brings on a new problem, because in order to copy something in that directory you need administrative permissions. Even though the account installing the application should have this permissions, it is not permitted to copy files to that location. Or I haven’t found a good way of doing this, if you know the solution please let me know because I haven’t found a better way. I did however found one way of completing this and it seems a little bit devious, but if it works it works. It involves creating a scheduled task which then copies the files to the right location.. In order to make it work all the necessary information is wrapped into a Win32 Intune package to deploy it to the device. The tool for doing this will also be used for the monitoring agent later on in this blog. To learn and read more about this packaging method check out my previous blog.

To start create a folder containing the following:

-Your CIP file
– A Powershell script to Deploy the CIPolicy  (Deploy-CIP.ps1 Adjust the script to match your CIPolicy id.)

#Create CIP directory
New-Item -Path "c:" -Name "CIP" -ItemType "directory"

#Start logging
$logfile = 'c:\CIP\CopyCIPolicy.txt'
Start-Transcript $logfile -force

#Copy items to CIP directory
Copy-Item -Path ".\{DF4B2E6F-F05F-4C3D-AE70-000F6CCD445C}.cip" -Destination "C:\CIP" -Force
Copy-Item -Path ".\Copy-CIP.ps1" -Destination "C:\CIP" -Force

#Create scheduled task
$Time = New-ScheduledTaskTrigger -Once -At 12:00
$User = "SYSTEM"
$Action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass -file `"C:\CIP\Copy-CIP.ps1`""
Register-ScheduledTask -TaskName "CopyCIPolicy" -Trigger $Time -User $User -Action $Action -Force
Start-ScheduledTask -TaskName "CopyCIPolicy"

Stop-Transcript

#Exit code
Return 0

– A Powershell script to Copy the CIPolicy  (Copy-CIP.ps1 Adjust the script to match your CIPolicy id.)

Copy-Item -Path "C:\CIP\{DF4B2E6F-F05F-4C3D-AE70-000F6CCD445C}.cip" -Destination "C:\Windows\System32\CodeIntegrity\CiPolicies\Active" -Force

– A Powershell script to remove the CIPolicy (Remove-CIP.ps1 Adjust the script to match your CIPolicy id

#Cleaning up resources

Stop-ScheduledTask -TaskName "CopyCIPolicy"
Unregister-ScheduledTask -TaskName "CopyCIPolicy" -Confirm:$false
Remove-Item -Path "c:\CIP" -Recurse -Force

#remove policy from C:\Windows\System32\CodeIntegrity\CiPolicies\Active

Remove-Item -Path "C:\Windows\System32\CodeIntegrity\CiPolicies\Active\{DF4B2E6F-F05F-4C3D-AE70-000F6CCD445C}.cip" -Force


#Exit code
Return 0
  • Run the IntuneWinAppUtil.exe and specify:
    • The source folder location
    • The setup file, which is Deploy-CiPolicy.ps1
    • Output folder
    • You do not need a catalog folder

To deploy the application use endpoint.microsoft.com:

  • Add and new Windows app (Win32)
  • Fill in the app information
  • For the install command use powershell.exe -ExecutionPolicy Bypass .\Deploy-CIP.ps1
  • For the uninstall use powershell.exe -ExecutionPolicy Bypass .\Remove-CIP.ps1
  • Run as system
  • Specify your requirements
  • For Detection rules make use of a File manually detection rule. Here you can use C:\Windows\system32\CodeIntegrity\CiPolicies\Active and for File use {DF4B2E6F-F05F-4C3D-AE70-000F6CCD445C}.cip (change the name to your CIP policy), detection method File or folder exists

5. Monitor your WDAC Policy

As mentioned previously in this blog you can view the Event Viewer to check if applications are blocked. In larger deployments this is not really practical to check each individually device for events.  Ideally you want to have a central location for all the Event logs. For this you can use a Log Analytics Workspace.

To create a Log Analytics Workspace follow these steps Create a Log Analytics workspace in the Azure portal – Azure Monitor | Microsoft Docs. Then open the workspace and select Advanced Settings and Data. Search for Microsoft-Windows-CodeIntegrity and add both, also add Operations Manager. Do not forget to save the configuration.

After you have a Workspace enable logging in endpoint.microsoft.com by going to Reports and selecting Diagnostics settings. Select Add diagnostic setting. Select all the different log types and for destination details select Send to Log Analytics Workspace and select your subscription and Workspace.

Enable logging Endpoint Manager

Go back to the Analytics Workspace and now go to Agents Management. Here you can download the log agent and make sure to note the Workspace ID and the Primary key.

The downloaded Analytics agents needs to be repackaged using the IntuneWinAppUtil.exe. Check out my previous blog for more in-depth information.  The first step is to extract the contents of the AnalyticsAgent.exe.

  • Place the downloaded MMASetup-AMD64.exe into a folder
  • Run .\ MMASetup-AMD64.exe /c and specify a folder location on where to put the extracted data.
  • Run the IntuneWinAppUtil.exe and specify:
    • The source folder location
    • The setup file, which is setup.exe
    • Output folder
    • You do not need a catalog folder
  • You now have the monitoring app packaged into the Intune format

To deploy the application use endpoint.microsoft.com:

  • Add and new Windows app (Win32)
  • Fill in the app information
  • For the install command use setup.exe /qn NOAPM=0 ADD_OPINSIGHTS_WORKSPACE=1 OPINSIGHTS_WORKSPACE_ID=”<WORKSPACEID>” OPINSIGHTS_WORKSPACE_KEY=”<PRIMARYKEY>” OPINSIGHTS_WORKSPACE_AZURE_CLOUD_TYPE=0   AcceptEndUserLicenseAgreement=1″
    You need the Workspace ID and the Primary key from your workspace. View the reference in the docs Install Log Analytics agent on Windows computers – Azure Monitor | Microsoft Docs
  • SPecify your requirements
  • For Detection rules make use of a Registry manually detection rule. Here you can use Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HealthService\Parameters\Management Groups\AOI-<WORKSPACEID> where you change WORKSPACEID to your Workspace ID
  • Assign your application to a group

After the deployment is finished the Monitor Agent starts uploading Event logs to the Workspace. To view the Event Logs open the Workspace and select Logs. Here you can enter Query based on Kusto Query Language to search the Event Viewer logs. For example you can use the following query to display all the logs with a Warning or Error in the Code Integrity Events category.

Event
| where Source == "Microsoft-Windows-CodeIntegrity"
| where EventLevelName == "Warning" or EventLevelName == "Error"
| project TimeGenerated, Computer, RenderedDescription
| sort by TimeGenerated desc

6. No more testing, time for enforced mode

When your done with testing and you have validated everything to work as expected it is time to turn on the enforced mode. To enforce the policy option 3 is removed from the XML which is the configuration for audit mode.

$CIPolicyXML = "C:\temp\WDAC_Policy_DellLatitude5500.xml"
Set-RuleOption -FilePath $CIPolicyXML -Delete -Option 3

After the audit mode is removed repackage the XML to a CIP for local testing or to a bin file if you deploy the policy with Endpoint Manager.  

Endpoint Manager Win32 App Deployment (MSI and EXE)

HOW TO: deploy Win32 application using Endpoint Manager.

With Endpoint Manger you can deploy a variety of different applications to Windows clients.  I have made blog posts about using MSIX packages to provide a modern way to distribute applications. Sometimes MSIX might not be the right solution for you. This blog is about deploying Win32 applications using the Windows App (Win32) capabilities. This form of distributing gives you a lot of control on how and when an application should be installed.

A note of caution, if you start to use Windows App (Win32) app deployment for your environment it is highly recommended that you do not combine Windows App (Win32) with Line-of-Buisiness app installations. Especially if you are planning to use Microsoft Autopilot, the combination of Win32 apps and Line-of-Business apps will cause installations to fail. So, if you decide to use Windows App (Win32), use it for all your applications.

Before you can upload a Win32  application to Endpoint Manager you will need to prepare the application. Essentially you repackage the application and all the dependent files into an .IntuneWin package, which can then be uploaded to Endpoint Manger. To package an application you will need to download the Win32 Content Prep Tool from GitHub.

You will then need to gather all required media to install the application and place them into one folder. I have created two examples, one for .exe applications and one for .msi application. For both types of installations, it is recommended to create two batch files, one for installation and one for the uninstallation. This will provide better control when deploying the application.

For the Citrix Workspace, which is an .exe I have created the following batch files: install.cmd and uninstall.cmd and placed them in a folder togheter with the exe installation file.

Install.cmd:

@ECHO OFF
PUSHD "%~dp0"
"CitrixWorkspaceApp.exe" /silent /noreboot /forceinstall

uninstall.cmd

@ECHO OFF
PUSHD "%~dp0"
"CitrixWorkspaceApp.exe" /silent /uninstall
Citrix Workspace package content

For Acrobat Reader, which is an .msi I have also created the following batch files: install.cmd and uninstall.cmd. These files are added to the installation files.

msiexec /i "%~dp0AcroRead.msi" ALLUSERS=1 /qn /norestart
msiexec /x "%~dp0AcroRead.msi" /q
Acrobat Reader package content

Once you have gathered all the necessary installation media and you have validated that your batch files are working, by running the install.cmd and uninstall.cmd files you are ready to package. To package the applications run IntuneWinAppUtil.exe from an elevated PowerShell prompt. You are prompted for the source folder, which is the folder that contains all the installation files. The setup file is the actual executable and you need to specify an output folder where the .IntuneWin  file will be saved. At this point we do not need a Catalog folder. After the Utillity is ready you will end up with an .IntuneWin file.

Endpoint Manager

Now its time to distribute the application using Endpoint Manger. Login to endpoint.microsoft.com and select Apps and all Apps to Add a new application. Make sure to choose Windows app (Win32) as an app type. The first step is to select your .IntuneWin file and to provide information about the application. I will first start with Citrix Workspace and then add Acrobat Reader.

Application information

The second step specifies how to install the application. For the install and uninstall commands you will need to enter the batch files you created in the beginning. In my case the Install command is install.cmd and the uninstall command is uninstall.cmd. For installation behavior you can choose between system and user. This will determine where the application will be installed, either in the system context or in the user profile, this depends on your application.

Application installation controls

Choosing a restart behavior after the application is installed. Of course, this all depends on your application and whether it requires a reboot. Depending on your needs the following actions are explained:

Determine behavior based on return codes – The device will restart bases on the configured return code.
No specific action – Will suppress a restart during the installation of Win32 apps.
App install may force a device restart – This option means that the Win32 app installation can complete without suppressing restarts. With this configuration a Hard reboot return code will notify the user that a restart of the device will be triggered in 120 minutes. A Soft reboot return code will notify the user that a restart is required to finish the installation.
Intune will force a mandatory device restart – After a successful Win32 app installation the device will be rebooted immediately with no notification.

You get several default return codes. In most cases these return codes will work for you application . . The code configures the post-installation behavior of the Win32 app. If your application uses different access codes, you can use them here. The actions are explained:

Failed – The Failed return code indicates that the Win32 app installation failed.
Hard reboot – The Hard reboot return code indicates that the device is required to restart to complete the installation. Additional Win32 apps cannot be installed on the device without restart. The user will be notified about the required restart.
Soft reboot – The Soft reboot return code indicates that the next Win32 app can be installed without requiring a restart, but a restart is necessary to complete the installation of the installed Win32 app. The user will be notified about the restart.
Retry – The Retry return code indicates that the Win32 app installation is retried three times. The installation will wait for 5 minutes between each attempt.
Success – The Success return code indicates the Win32 app installation was successful.

The third step in the process is to specify the requirements. For the most part these are self-explanatory. You can however use custom requirement types such as specific files, registry settings or even scripts to determine whether an application should be installed or not. I will not be going into detail in this blog. For now, I only choose to install on 64-bit machines with a minimum operating system of Windows 10 1903.

Installation requirements

The fourth step are the detection rules. The detection rules are used to check if the application is present on the device. If the rules are not met Endpoint Manager will try to install the application on the device.

For .exe installations you might decide to just validate if the application is present. In my case I just check if SelfService.exe is present, in the path C:\Program Files (x86)\Citrix\ICA Client\SelfServicePlugin\.

EXE Application detection rule

The fifth step is to create dependency rules. Software dependencies are applications that must be installed before this application can be installed.  Specifically, the device must install the dependent apps before it installs the Win32 app. You can add Win32 app dependencies only after your Win32 app has been added and uploaded to Intune. After your Win32 app has been added, you will see the Dependencies option on the pane for your Win32 app. Any Win32 app dependency needs to also be a Win32 app. It does not support depending on other app types, such as single MSI LOB apps or Microsoft Store apps.

Since this is the first Win 32 app there is no option to create any dependencies. After Citrix Workspace is added a dependency will be created with Acrobat Reader. So, I just select next and I assign the application to a user group, as required.

For Acrobat Reader the steps are the same with a few exceptions. For the detection rules I will use a MSI rule type instead of a file location. Normally the MSI product code is filled in automatically. If this is not the case, you can check your registry settings. For 64-bit machines browse to HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall. Here you will find an overview of all the installed applications. In my case for Acrobat Reader I can find the MSI GUID.

MSI application detection rule
Find the MSI GUID in the Registry settings

Since Citrix Workspace has been added to Endpoint Manger this can be used as a dependency. Acrobat Reader and Citrix are do not require each other to function, this is purely for demonstration purposes. To add a dependency simply select to add a dependency and select the application, in this case CitrixWorkspace.exe. By creating dependencies means that before Acrobat Reader is installed the Citrix Workspace application must be present. If Citrix Workspace is not present Endpoint Manager will install it first.

Application dependencies

Now the configuration is ready, and the applications start deploying to the clients. What happens on the client? Well first the Intune Management Extensions is installed on the client. This extension is used for the installation as well as the deployment of custom PowerShell scripts on devices. You can use the extension for troubleshooting purposes. The log file IntuneManagementExtension.log can be found in C:\ProgramData\Microsoft\IntuneManagementExtension\Logs.

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