Have you looked closely in the registry ?
Sometimes a program also have a value for QuietUninstallString
(Sometimes it only has a value for QuietUninstallString and none for UninstallString)
Look for valuename: QuietUninstallString
code:
$keyname = "{92F2A534-C3E4-4B18-BEBD-329F5E848C8B}"
$Quiet = READVALUE("HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$keyname","QuietUninstallString")
If "$Quiet" ; You are lucky
Run "$Quiet"
EndIf
-Erik
