VIRUS? WORM? TROJAN? Download starts Microsoft Word

[steiniger]

Hey Dudes,

the following happens right after starting to download files with LimeWire:

Microsoft Word starts autmatically.

This happens since a long time (i am using LimeWire in cause of this reason only frequently) and is depending on the (different) file i am downloading. Not every file causes the start of word and i don´t think this has anything to do with the newly known word virus which also spreads over peer to peer. therefor it takes place immediatly after starting the download, i wonder if parts of the file can execute word? cannot find anything on the web about this problem, and i thought i am up to date with anti-virus-protection.

i would be greatful if you could help me.

greetz steiniger