New Steam Client

I have the new steam client. Everytime I try to play MW2 with VAC Chaos. VAC Chaos gives me an error "invalid steam client" and then exits. I have VAC Chaos 2.03.

I don't think you should use it till it will be updated..because u might risk a ban.. and by the way..it worked for me few days ago.

Try This
run as admin on steam
and then run as admin at VAC chaos*well while u want to login*
and there u go

Try again if it dont work tho!

Vac Chaos is a piece of crap FYI.

~Thankies

i had the same problem . but if i logged out steam . and then reconnect with my account . it worked i guess u can only start vac chaos once a login sesion .

vac chaos got an update, and i from what i heard, the error shouldnt pop up anymore

Yep it got new update! FTW

Guess your problem is solved.
Have fun.

Thread closed.