Thank you for the lead to IRScrutinizer and the Render function. If I can impose further, I still need to know how to take the info I have - address, group, RC5 code, etc., and give IRScrutinizer what it is looking for as inputs - D and F (and others?). Could you show me how to do that, or point me to some documentation that would let me figure it out?

Thanks, again.

--Charlie