I just load the CCF and it works. You will find an early version of my CCF file in the Pronot classic files section here. I am modifying it extensively to better suit the iPAQ HW (hard buttons) and will upload again when I am through. One limitation is that the emulation SW only seems to work with learned IR codes. Apparently the DB codes are built into the Pronto and are not available in PDA emulator SW, so if your CCF depends on UDB codes, that may be why it doesn't work. I used TVRC 5.5's buit-in learn function to learn the IR codes from the original RC's with good results. Another limitation (with all of the emulator SW, AFAIK) is that hold-to-repeat (i.e. continually increasing the volume by holding down the vol. up button) doesn't work. Since TVRC 5.5 has a relatively short actuation time, it is only a minor annoyance to press the appropriate key repeatedly instead of holding it down.