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Is there a possibility to retreive the MSI product code out of a MSI file without installing it with PowerShell? I want to compare the product code of a MSI file with the MSI codes installed on a maschine to find out if the file was installed in the past.

  • [List of free tools you can used to view MSI files down the page here](https://stackoverflow.com/questions/48482545/how-can-i-compare-the-content-of-two-or-more-msi-files) (Orca, SuperOrca, etc...). The ProductCode can be found in the **`Property table`** once you have a tool capable of reading MSI files. And you can [find the product code for installed MSI setups](https://stackoverflow.com/q/29937568/129130). – Stein Åsmul Dec 26 '18 at 00:10

2 Answers2

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Here is a script that reads the product code based on this article:

$path = "pathto.msi"

$comObjWI = New-Object -ComObject WindowsInstaller.Installer
$MSIDatabase = $comObjWI .GetType().InvokeMember("OpenDatabase","InvokeMethod",$Null,$comObjWI,@($Path,0))
$Query = "SELECT Value FROM Property WHERE Property = 'ProductCode'"
$View = $MSIDatabase.GetType().InvokeMember("OpenView","InvokeMethod",$null,$MSIDatabase,($Query))
$View.GetType().InvokeMember("Execute", "InvokeMethod", $null, $View, $null)
$Record = $View.GetType().InvokeMember("Fetch","InvokeMethod",$null,$View,$null)
$Value = $Record.GetType().InvokeMember("StringData","GetProperty",$null,$Record,1)

$Value now contains the product code.

Martin Brandl
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    Thanks! Unfortunately, you need the whole script code from the article, the extract is not working like this. But thanks! This solved the problem! –  Aug 10 '15 at 13:17
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    Replace "$WindowsInstaller" with "$comObjWI" and the extract will work – Jonathan H. Jan 25 '17 at 12:54
  • I think you need to remove the space between `$comObjWI` and `.getType()` on the 3rd line of code – Tim Feb 14 '20 at 12:45
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A shorter way to get the ProductCode from a MSI package:

Get-AppLockerFileInformation -Path "C:\PathTo\my.msi" | select -ExpandProperty Publisher | Select BinaryName
Christophe
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