How do I create a package that contains a CMD and RUN command?

[raha_ang]

Looking at the above script I pasted, I believe this is the section where the magic happens.

Function install
ReturnVal = ObjShell.run ("msiexec /I ""OutlookAddinSetup.msi"" /qn /lve ""C:\Program Files\GPT\logging\RoomViewFusion.log""", 0, True)
If Not (ReturnVal = 0 Or ReturnVal = 3010) then LogError("RoomViewFusion! ReturnCode:" & ReturnVal)
'ReturnVal = ObjShell.run ("regedit /s settings.reg", 0, True)
'If Not (ReturnVal = 0 Or ReturnVal = 3010) then LogError("RoomViewFusion! ReturnCode:" & ReturnVal)
End Function

The script installs the new version and adds the reg settings but doesnt uninstall the old version in between.

Any ideas how I can include a step in between the two to run this command?

msiexec /x {205CFDD2-34CF-4141-93AA-55FCDB7BB012} /q