objc_msg_send not working (windows)

[Lloyd Dupont]

I have huge problem tracking my bug.
Finally I decided to hack libobjc and I added a printf in
sendmsg.c:261 (objc_msg_sendv)

To my dismay this function doesn't seems to be called....

I decide to hack objc_msg_lookup and get_imp as well.
it seems that get_imp is seldom used and I see a lot of objc_msg_lookup.

Now the problem is, my wrapper is using MamagedC++ wrapper is using 
get_impand not objc_msg_lookup.
Is ther something wrong with that?