I don't know the answer to your problem (yet), but you need to clarify your post.

Which IM program are you using?

You might like to reconsider using Rediff Bol, it may have some security issues:

http://archive.cert.uni-stuttgart.de/bugtraq/2003/01/msg00313.html

(The article is dated 2003, so perhaps these issues have been fixed now. Check the version you are using.)

This article is 2006:

http://www.infogreg.com/security/misc/rediff-bol-downloader-allows-downloading-and-spawning-arbitary-files.html