Microsoft Endpoint Manager Configuration Manager (MEMCM / SCCM) and Microsoft Intune use Detection Rules to determine the presence of Applications & Win32 Apps. The detection rules ensure that application installations only begin to run if the application is not already installed on the device. This article will serve as an informative guide and give you a clear understanding of how to create an updated custom detection script for each new version of LM Studio using PowerShell.
How to Create a Custom Detection Script for LM Studio
LM Studio (Registry Detection Method)
- Install the version of LM Studio you want to deploy on a test box or VM
- Check out the following posts for further details
- Open Windows PowerShell ISE by Right-Clicking on Windows PowerShell ISE and selecting Run as Administrator
- Copy the following code into the Windows PowerShell ISE
## Check for LM Studio (Registry Detection Method)
$LMStudio = Get-ChildItem -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall" | Get-ItemProperty | Where-Object {$_.DisplayName -match 'LM Studio' } | Select-Object -Property DisplayName, DisplayVersion, PSChildName
$LMStudio.DisplayVersion
$LMStudio.PSChildName
## Create Text File with LM Studio Registry Detection Method
$FilePath = "C:\Windows\Temp\LM_Studio_Detection_Method.txt"
New-Item -Path "$FilePath" -Force
Set-Content -Path "$FilePath" -Value "Function Get-LoggedOnUserSID {"
Add-Content -Path "$FilePath" -Value "## ref https://www.reddit.com/r/PowerShell/comments/7coamf/query_no_user_exists_for/"
Add-Content -Path "$FilePath" -Value "## ref https://smsagent.blog/2022/03/03/user-context-detection-rules-for-intune-win32-apps/"
Add-Content -Path "$FilePath" -Value "`$header=@('SESSIONNAME', 'USERNAME', 'ID', 'STATE', 'TYPE', 'DEVICE')"
Add-Content -Path "$FilePath" -Value "`$Sessions = query session"
Add-Content -Path "$FilePath" -Value "[array]`$ActiveSessions = `$Sessions | Select -Skip 1 | Where {`$_ -match ""Active""}"
Add-Content -Path "$FilePath" -Value "If (`$ActiveSessions.Count -ge 1)"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "`$LoggedOnUsers = @()"
Add-Content -Path "$FilePath" -Value "`$indexes = `$header | ForEach-Object {(`$Sessions[0]).IndexOf("" `$_"")}"
Add-Content -Path "$FilePath" -Value "for(`$row=0; `$row -lt `$ActiveSessions.Count; `$row++)"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "`$obj=New-Object psobject"
Add-Content -Path "$FilePath" -Value "for(`$i=0; `$i -lt `$header.Count; `$i++)"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "`$begin=`$indexes[`$i]"
Add-Content -Path "$FilePath" -Value "`$end=if(`$i -lt `$header.Count-1) {`$indexes[`$i+1]} else {`$ActiveSessions[`$row].length}"
Add-Content -Path "$FilePath" -Value "`$obj | Add-Member NoteProperty `$header[`$i] (`$ActiveSessions[`$row].substring(`$begin, `$end-`$begin)).trim()"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "`$LoggedOnUsers += `$obj"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "`$LoggedOnUser = `$LoggedOnUsers[0]"
Add-Content -Path "$FilePath" -Value "`$LoggedOnUserSID = Get-ItemProperty ""HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\SessionData\`$(`$LoggedOnUser.ID)"" -Name LoggedOnUserSID -ErrorAction SilentlyContinue |"
Add-Content -Path "$FilePath" -Value "Select -ExpandProperty LoggedOnUserSID"
Add-Content -Path "$FilePath" -Value "Return `$LoggedOnUserSID"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "`$LoggedOnUserSID = Get-LoggedOnUserSID"
Add-Content -Path "$FilePath" -Value "If (`$null -ne `$LoggedOnUserSID)"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "If (`$null -eq (Get-PSDrive -Name HKU -ErrorAction SilentlyContinue))"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "`$null = New-PSDrive -PSProvider Registry -Name HKU -Root HKEY_USERS"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "`$i = Get-Item ""HKU:\`$LoggedOnUserSID\Software\Microsoft\Windows\CurrentVersion\Uninstall\$($LMStudio.PSChildName)"" -ErrorAction SilentlyContinue"
Add-Content -Path "$FilePath" -Value "if (`$null -eq `$i)"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "## Key Does NOT Exist"
Add-Content -Path "$FilePath" -Value """Key Does NOT Exist"""
Add-Content -Path "$FilePath" -Value "Exit 1"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "else"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "`$r = Get-ItemProperty ""HKU:\`$LoggedOnUserSID\Software\Microsoft\Windows\CurrentVersion\Uninstall\$($LMStudio.PSChildName)"" -Name 'DisplayVersion' -ErrorAction SilentlyContinue |"
Add-Content -Path "$FilePath" -Value "Select -ExpandProperty 'DisplayVersion'"
Add-Content -Path "$FilePath" -Value "If (`$r -ge '$($LMStudio.DisplayVersion)')"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "## Installed"
Add-Content -Path "$FilePath" -Value """Installed"""
Add-Content -Path "$FilePath" -Value "Exit 0"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "else"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "## Correct App Version NOT Installed"
Add-Content -Path "$FilePath" -Value """Correct App Version NOT Installed"""
Add-Content -Path "$FilePath" -Value "Exit 1"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "Else"
Add-Content -Path "$FilePath" -Value "{"
Add-Content -Path "$FilePath" -Value "## No Logged on User Detected"
Add-Content -Path "$FilePath" -Value """No Logged on User Detected"""
Add-Content -Path "$FilePath" -Value "Exit 1"
Add-Content -Path "$FilePath" -Value "}"
Invoke-Item $FilePath
- Click Run Script (F5)
- A text file will open with the LM Studio Detection Method script required to detect the current version of LM Studio that is installed on the device you are running the script from.
Example:
Function Get-LoggedOnUserSID {
## ref https://www.reddit.com/r/PowerShell/comments/7coamf/query_no_user_exists_for/
## ref https://smsagent.blog/2022/03/03/user-context-detection-rules-for-intune-win32-apps/
$header=@('SESSIONNAME', 'USERNAME', 'ID', 'STATE', 'TYPE', 'DEVICE')
$Sessions = query session
[array]$ActiveSessions = $Sessions | Select -Skip 1 | Where {$_ -match "Active"}
If ($ActiveSessions.Count -ge 1)
{
$LoggedOnUsers = @()
$indexes = $header | ForEach-Object {($Sessions[0]).IndexOf(" $_")}
for($row=0; $row -lt $ActiveSessions.Count; $row++)
{
$obj=New-Object psobject
for($i=0; $i -lt $header.Count; $i++)
{
$begin=$indexes[$i]
$end=if($i -lt $header.Count-1) {$indexes[$i+1]} else {$ActiveSessions[$row].length}
$obj | Add-Member NoteProperty $header[$i] ($ActiveSessions[$row].substring($begin, $end-$begin)).trim()
}
$LoggedOnUsers += $obj
}
$LoggedOnUser = $LoggedOnUsers[0]
$LoggedOnUserSID = Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\SessionData\$($LoggedOnUser.ID)" -Name LoggedOnUserSID -ErrorAction SilentlyContinue |
Select -ExpandProperty LoggedOnUserSID
Return $LoggedOnUserSID
}
}
$LoggedOnUserSID = Get-LoggedOnUserSID
If ($null -ne $LoggedOnUserSID)
{
If ($null -eq (Get-PSDrive -Name HKU -ErrorAction SilentlyContinue))
{
$null = New-PSDrive -PSProvider Registry -Name HKU -Root HKEY_USERS
}
$i = Get-Item "HKU:\$LoggedOnUserSID\Software\Microsoft\Windows\CurrentVersion\Uninstall\LM-Studio" -ErrorAction SilentlyContinue
if ($null -eq $i)
{
## Key Does NOT Exist
"Key Does NOT Exist"
Exit 1
}
else
{
$r = Get-ItemProperty "HKU:\$LoggedOnUserSID\Software\Microsoft\Windows\CurrentVersion\Uninstall\LM-Studio" -Name 'DisplayVersion' -ErrorAction SilentlyContinue |
Select -ExpandProperty 'DisplayVersion'
If ($r -ge '0.2.12')
{
## Installed
"Installed"
Exit 0
}
else
{
## Correct App Version NOT Installed
"Correct App Version NOT Installed"
Exit 1
}
}
}
Else
{
## No Logged on User Detected
"No Logged on User Detected"
Exit 1
}
- Copy the LM Studio Detection Method script content into the Custom Detection Rules (Script)
- Microsoft Endpoint Manager Configuration Manager (MEMCM / SCCM)
- Microsoft Intune
Always make sure to test everything in a development environment prior to implementing anything into production. The information in this article is provided “As Is” without warranty of any kind.