http://wearenixed.blogspot.com/2008/03/you-only-know-good-when-youve-seen-ba...
"I had set her up with a perfect Wine install. She had a bit of software that needed to run under wine and I had shown her how to install within that environment. Apparently, I wasn't specific enough. It never occurred to Paula that the .exe programs she had used on her XP machine were the vehicles for many of her present viruses. To her, it was perfectly fine to use those same .exe's...after all, she was in Linux, right?
I got there within the same hour and checked her machine. Yep...Windows viruses will reside and create the same havoc within a Wine environment. Now, I've seen it with my own eyes. This time I reinstalled for her and made sure I found all the infected .exe's on the Windows side and deleted them."