I want to know how to make a counter that increases each day.
It should be a little more complicated than adding/changing a file in the program's path or \windows and \windows\system path or checking/changing a file's date...
I CRC-checked all the files in the HD before and after, and didn't see a change. Take, for example, SpiderPad, Netscape Cache Explorer or InstallShield. And there are dozens.
TAKE CARE OF THESE FACTS ABOUT SOFTWARES I EXAMINED:
1. No change in checksum/CRC was detected (before-after tests)
2. No comparing of some hidden registry value or something to the system's date. Else - you'd just set the date to few days before.