NirSoft's RunAsDate (Windows app)

has created a utility called RunAsDate.
With this utility you can run a program in the date and time that you specify.
The Utility doesn't change the current system date and time of your computer, but only injects the date/time that you specify into the desired application.



With this utility you might be able to extend a trail period of some applications without paying for it, but this is not why the program is made
and the most software will detect if there was a modification with the date/time stamp.

System Requirements:
RunAsDate works under Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, and Windows 7.

Issues:
According to the developersite there is one False Positive issue with RunAsDate when you are using AVG Antivirus.
This antivirus program sees RunAsDate as a program infected with "Trojan horse Generic 10.THK".

Downloads are here:
Download RunAsDate(32bit) or the 64 bit version for 64 bit applications you Download RunAsDate for x64 here.