Hi Gennadiy,
Thanks for that. I have managed to get a bit further now with your code. It actually logs that it starts and the msiexec gets added to the TestedApps, but what happens now is that is that I just get the Windows Installer parameters window coming up, so I am assuming that my parameters to execute my msi file are incorrect and I will have to go and talk to the developers which ones I have to use.
I had also seen somewhere else something like this snippet used, but all it gives me is an error stating that the "installation package could not be opened". So obviously it is to do with permissions here as well.
Set WshShell = CreateObject("WScript.Shell")
WshShell = CreateObject("WScript.Shell")
WshShell.Run "msiexec.exe /i Fullpath"
Once again thanks for your help so far.
Ken