An adminstrator wanted to know if a certain KB from Microsoft had been installed. He wanted to know a command that does the job. In a world with DOS you can simply run:

systeminfo

However he also wanted to see if a Xenapp Hotfix had been installed. This of course can’t be done with the command above. So I wrote some code that exports the uninstall information from the local server. The code export x64 and x86 software. If the server is not 64 bit you’ll get errors. That said you’ll probably don’t have Powershell v3 installed on such server.

$List1 = Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*
$List1 += Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*
$List1 = $List1 | Select DisplayName, DisplayVersion, Publisher, InstallDate