Create the drives.txt and printers.txt files.
Then creating drive and printer mappings based on group membership is just a matter of selecting from the drop down boxes.
I found and used this tool when I wanted to create a common logon script to replace the dozen or so batch files that were being used at work.
From http://www.primalscript.com/Free_Tools/index.asp
Logon Script Generator
This free tool is an HTA that generates a fully functional VBScript logon script. Now you can script without scripting! At the very least you can quickly generate the foundation of a VBScript logon script that you can further modify and extend. The HTA generates VBScript code, lets you preview it and then save it to a file. Once saved, you can edit the code in PrimalScript with the click of a button. If you don't have PrimalScript, the saved script can be opened in Notepad. Requirements: Windows XP and an Active Directory domain.
http://www.sapien.com/download.aspx?file=logonhta
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