Hello Neil,

"So should I be doing the following when updating my vfp com object:
1)make changes to the com object: including adding and delteing methods, changing the order of the methods, signatures, etc.
2)rebuild the vfp COM object
3)recompile the asp.net application
4)re-distribute the asp.net application and the vfp com object to the web server once again"

exactly.
At least in "theory" this should work flawlessly, you may just do a little test for safety.

"And... then am I good to go. Or... do I have to request a new indentifier each time I rebuild my com object from within vfp and then recompile the asp.net application. If so, do I have to re-register the vfp com object on the web server and redo com+?"

You don't have to regenerate the COMponents ID.

Regards
Christian