Question

Can a torrent application conflict with other applications? so as to render them useless and invalidate their respective licenses?

Answer 1

Unless it is ridden with viruses, it will not invalidate other licenses!

Answer 2

Not that l know of except in rare situation where the suppose to torrent is bundled with viruses, adware or trojan then antivirus might block it.

Answer 3

Some torrent clients come with a media player. So if you make the wrong selections when installing, it will associate certain file types with the torrent program rather than the regular application which you would normally use to open that file - e.g. it can make itself the default player for certain video files. But this can usually be changed. However you CAN download some bad viruses by mistake - torrenting is a precarious business - always be extra careful and prudent.