Error occured in the script

I have a user that asked me about this error he received on his home computer. Of course, I wasn’t there and can’t say exactly what the computer was doing, or what the user was doing for that matter, but he asked me to look into it. I do know theydo not have a server attached to their computer, except perhaps through their cable provider modem, which is connected to the user’s Linksys router.

Error occured in the script
Line: 15
Char: 2
Error: Server execution failed
Code: 0
URL file: //c:\Windows\System\AdCache1 B_638000.HTM

Any idea as to what this means? Thanks so much for your help. I have requested some add’l background info from the user, so perhaps I can report some add’l information soon.