How do I test if another installation is already in progress?

Question

Assuming I\'m trying to automate the installation of something on windows and I want to try to test whether another installation is in progress before attempting install. I

Answer 1

Sorry for hijacking you post!

I have been working on this - for about a week - using your notes (Thank you) and that from other sites - too many to name (Thank you all).

I stumbled across information revealing that the Service could yield enough information to determine if the MSIEXEC service is already in use. The Service being 'msiserver' - Windows Installer - and it's information being both state and acceptstop.

The following VBScript code checks this.

Set objWMIService = GetObject("winmgmts:\\.\root\cimv2")
Check = False
Do While Not Check
   WScript.Sleep 3000
   Set colServices = objWMIService.ExecQuery("Select * From Win32_Service Where Name="'msiserver'")
   For Each objService In colServices
      If (objService.Started And Not objService.AcceptStop)  
         WScript.Echo "Another .MSI is running."
      ElseIf ((objService.Started And objService.AcceptStop) Or Not objService.Started) Then
         WScript.Echo "Ready to install an .MSI application."
         Check = True
      End If
   Next
Loop