britedream,
DataCD stupidly stores the number of times it has been executed in some hashed data in registry. After executing it only once, I exported that registry key, and by importing that registry key now, I can reset the number of executions. So, the 13 execution limit does not matter! Effectively, all that is left is the 7 day limit.

BUT...

I know exactly where in code it checks the number of executions and days elapsed. It is very easy to bypass, I think. Try looking at the subroutine at RVA 57D590-57D603. That is the procedure that generates the messagebox. In that routine, check for calls to 573640 (routine that returns number of days total and number of days remaining) and 5736A4 (routine that returns number of executions total and number of executions remaining). Those routines can easily be patched, allowing you to run the program as many times as you want.

With that information, I would greatly appreciate if you could try your hand at unpacking it. You seem very competent, much moreso than myself, and I am greatly interested in what else needs to be done to get this application to work correctly. Thanks!