After looking at the bad NSE file, it was found that the computer was placed into a workgroup which had spaces in its name. Workgroup names can have a maximum length of 15 characters including numbers, and the characters exclamation point (!), at sign (@), pound sign (#), dollar sign ($), percent sign (%), caret (^), ampersand (&), parentheses ( ), underscore (_), hyphen (-), semicolon (;), colon (:), apostrophe ('), quote ("), comma (,) and period (.). It cannot contain any spaces, and must begin with a letter or number. See
http://www.microsoft.com/technet/prodtechnol/windows2000serv/reskit/w2000Msgs/4225.mspx?mfr=true.