so ive been going around on msn and people send this message that says theres a blockchecker at

http://www.block-checker..com (dont visit the site...)

i decide not to try it and good for me, people say it signs them out or makes them say a message about downloading the program.

Anybody know what this is? adware,spyware,virus,worm,trojan?

it's something weird... i think that's the one that automatically sends links to your contacts without consent.

You could try to search the forums first.

Block-Checker thread.