Code:
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colFolders = objWMIService.ExecQuery _
("Select * from Win32_Directory where ")
For Each objFolder in colFolders
errResults = objFolder.Compress
Wscript.Echo errResults
Next