Microsoft® Windows® Script Host
WshShell Object 		WSH Reference
Version 1

Properties                      Methods

Description
Starts a new process, creates shortcuts, and provides the Environment collection to handle environmental variables such as WINDIR, PATH, or PROMPT.
Example
The following example returns environment variable values using the Echo method: 
Set WshShell = WScript.CreateObject( "WScript.Shell" )
WScript.Echo WshShell.Environment.Item("WINDIR") 
WScript.Echo WshShell.Environment.Item("PATH") 
WScript.Echo WshShell.Environment.Item("PROMPT")
WScript.Echo WshShell.ExpandEnvironmentStrings("%WINDIR%")