[ @Johnny] I think the main problem is, that the program is clearly pretty obsolete (but not by date of last update). It doesn´t look good and also lacks some very important functionalities (for example there is no way to reset changes you made in program – i.e. in the begining the days pattern have transparent background, but after you choose some color, there is no way back to transparency, other example is not functioning print preview, etc.).
And the Activate.exe program looks like it works only at 64-bit machines.
For me this is simple the worst program I have ever seen on this web.