Hi, I'm trying to ascertain the length of a TOS_Msg variable I've typecasted to a self-defined struct. The struct I use has 6 variables of 4 bytes each. Thus, the total length of the TOS_Msg variable should be 24 + 10(headers) = 34. But the length is shown to be 46. I'm confused as to how this is so. I'd be thankful for help on this. Bhavish