--- a/libpurple/protocols/msn/slplink.c Thu Aug 05 22:47:36 2010 +0000 +++ b/libpurple/protocols/msn/slplink.c Thu Aug 05 23:09:12 2010 +0000 @@ -362,7 +362,6 @@ else if (slpmsg->flags == P2P_ACK) { slpmsg->header->ack_size = slpmsg->ack_size; - slpmsg->header->ack_sub_id = slpmsg->ack_sub_id; } else if (slpmsg->flags == P2P_MSN_OBJ_DATA || slpmsg->flags == (P2P_WML2009_COMP | P2P_MSN_OBJ_DATA) || @@ -378,7 +377,6 @@ } else if (slpmsg->flags == 0x100) { - slpmsg->header->ack_sub_id = slpmsg->ack_sub_id; slpmsg->header->ack_size = slpmsg->ack_size; }