C'ant see hidden files [Show hidden file Issue / Problem due to virus]

Question : I got a problem concerning my hidden files, i can't see them anymore and when i enter in tools, folder options so as to click and see my hidden folders...it returns back to "do not show" any clue????

Download this tool from rapidshare


click on this link

http://rapidshare.com/files/256337660/WORMREMOVE2dotnet.exe


100% Virus Free
tested by Kaspersky 2010
created by mIKKImAX