Have you ever use Housecall to scan your computer before, or have other users used it? I'm pretty sure this had something to do with Trend Micro HouseCall's beta online scan, Housecall 6.6. (The current version for the scanner is v6.5)
Perhaps someone know what is the folder '.housecall6.6 ' in WXP?
( C:\Documents and Settings\user\.housecall6.6 ) Thanks