Hi Shawn, I have been testing all over and it works properly on SP1 and SP2 and W2000 SP4 machines. Seems to just be those without any SP at all (the original XP). All the XP computers should be running SP2 so what I did was just put a check on ActiveDS.dll file version and exit the script if it's the wrong version (and log it for remediation). I must just get someone to install the SP. I haven't identified any w2000 machine without a SP so I'm not sure if the problem is also with them. Thanks for offering to test it though!