can open everything except "programs"

i used to be able to download programs and run them fine, but now i get this message after i try to launch the program.
"LimeWire will not launch the specified file for security reasons"
now i am fine if it is warning me not to download this specific file for security reasons, but it happens to every program i try to download. whither it's a game, format converter, or whatever. so can somebody help me? i would just fork out the $20 or so for the games i like or programs i need, but i feel i could be saving a decent amount of money.
any suggestions?
thanks

ok so i just ran my virus scan on my limewire and it said that the format converter i tried to download had a trojan on it. i fixed it, but i am much more skeptical about whither i should download programs or not.

Well,, by downloading programs (i.e. exe and zip/rar files) you're actually playing Russian Roulette.

In most of the cases you'll get invested by all kind of viruses and trojans.

The saving of $20 can cost you in the end an amount that is ten fold for just getting your computer fixed.

__________________

"Never Argue With An Idiot. They Will Drag You Down To Their Level, Then Beat You With Experience"

yeah, i thought limewire was safe of that stuff, but i downloaded a few programs from limewire, and my anti-virus programs recognized that they had trojan stuff and other bad stuff on them so no more downloading programs i guess.