You really should investigate Peganza Software's Pascal Analyzer. The Lite version is an easy test and is free. Look at the Controls report to give yourself a flavour for PAL. Now, the fact is, that the full version is full of goodies. For example, it has the PalCMD.exe program to use as a potential command-line interface to the full reports. You want to look at Uses and Control Index. Those are the money makers. Combine PalCMD with a program like SWEEP.exe that lets you iterate through a folder and all it's sub-folders running a command line. For example, I use the following lines to explode a bunch of 7Zip files in their respective folders and then delete the 7Zip itself. Not exactly the toughest of high-level programming but it works ...
G:
E:\apps\Utilities\Sweep.exe E:\apps\Utilities\7zip\7z.exe x *.7z
E:\apps\Utilities\Sweep.exe del *.7z
Not every folder HAS any 7Zip files. But when sweep finds them, and it will, it explodes them. The next pass then deletes the 7Zip files.
Now, switch the concept to running a PalCMD command-line and you can generate all PAP reports of what it finds. Then you can sweep all those PAP files into one folder. (I use AutoHotKey instead, but sweep CAN do the job with a copy command). Then, you write your utility to PARSE the reports one-by-one and there you have your Master Concordance.
I wish I could offer help with your HELP.zip file, but unfortunately, I don't have YOUR version of RAD. I've spent part of today trying to genericize ComponentKing to READ in REG export files and show the concordance between two versions, dubbed OLD and NEW. Not QUITE getting it all right. But it's because I've played around a little TOOO much trying to fine-tune the output to get rid of extraneous information, such as the TcomponentBased. prefix for what I call the source in XE7. Unlike the Palette key in D7, where the source can actually be listed, the Mapping key in XE7 doesn't directly list the source. It's more SOURCE TYPE, instead. But I can live with that, since the whole purpose of the exercise for me is to help develop better ReFind change command templates.
If I get something together that's worth others looking at it and using it as is, I'll post ComponentKing here. It's not pretty, but it does what I need it to do. Your need for a master concordance is different than mine. Hope PAL and Sweep or variants of each help you out.