>Thanks for all the wonderful replies. I feel like I have a better handle on things and plan to tackle the changes first thing in the morning.
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>To be perfectly sure I understand- If I make a master include file to call my other header files and set the master include file as the include file for the form this will take care of the entire form.
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>What exactly is ZDEF. I can't find any explanation in Help.

ZDEF shows you your #DEFINES and ZLOC shows you your Local variables. They are Intellesense commands new to VFP8. They need to be followed by a SPACE character to "kick it off".