>>>>What I need to know is if not called as above, HOW WILL THE COM SERVER KNOW WHICH METHOD TO CALL INTO THE CLIENT TO INTERRUPT IT, WHEN IT DOES RECEIVE A WEIGHT.
>>>
>>>It almost seems that two values would need to be returned. One would be a pointer to a method, and the other a weight value. There is another VFP guy called AutoYield - but you have probably already considered him.
>>
>>VFP doesn't support call backs, so a pointer to a method will not work. The closest thing to do what Bernard needs is a COM server that raises an event, and the VFP client can bind to that using VFPCOM.
>What if the COM has a property that has a character or numeric value.
>defin class mycom as custom
>ReturnPointer=1 && Or some othe value assigned in process
>procedure GetReturnPointer
>return this.ReturnPointer
>endproc
>enddef
>
>- AT the client
>oMyCom=createobject('MyCom')
>if oMyCom.GetReturnPointer()=1
> do Process_1
>endif
>
>Why couldn't the client use a value requested from the server to point to a local process?

That's not quite how a call back works, nor does it accomplish the same thing. There are many methods for a server process to determine what code the client runs, but allowing the server process to actually invoke the routine is what's needed. Your code sample simply invokes a synchronous method in the server and uses the return value to decide which procedure to call, but does nothing to determine when it should run.