Here is a sample code to start the notepad.exe on a remote computer. This code works well with all the Windows operating system except for the advance OS like Windows XP the notepad opens in an invisible mode. In the code below you need to replace "server" with the name of the computer where you want to start the process.
strComputer = "server"
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2:Win32_Process")
Error = objWMIService.Create("notepad.exe", null, null, intProcessID)
If Error = 0 Then
Wscript.Echo "Notepad was started with a process ID of " & intProcessID & "."
Wscript.Echo "Notepad could not be started due to error" & Error & "."
Hope this helps!