suspicious double extension

TDS-3 found this double extension pcdoc.bat.pif. what is it? Is it a legit windows xp pro file?

 

Hi,

Double extension is often associated with vicious email attachments : it's due to the masking of known file extension under windows (thus outlook...). It makes you think that a file is legitimate but it's not (for example : if you create a file named image.jpg.exe, if extension masking is enabled you'll only see image.jpg, hence thinking it's only a image file => you can imagine when you receive a malicious pif/bat/exe/com file disguised as a innocent picture or animation ).

But double extension can be inofensive (involved in version numbering of executable... etc). In your case, I think you should delete this one, a nasty or crappy one... but wait for others' opinion