Sending Types with Winsock

Hi there, any help would be much appreciated...

i'm programming the network code for a game, and i need to send user defined types using the vb winsock (6.0) control. the senddata function won't let me send a type, it says 'Only public user defined types defined in public object modules can be used as parameters or return types for public procedures of class modules or as fields of public user defined types'

apparently there's some way to do this using a byte array, but i have no idea how...

thanks again

pete
www.cintelsoftware.co.uk