RunAsDate is a small utility that allows you to run a program in the date and time that you specify. This utility doesn’t change the current system date and time of your computer, but it only injects the date/time that you specify into the desired application.
You can run multiple applications simultaneously, each application works with different date and time, while the real date/time of your system continues to run normally.
How does it work?
RunAsDate intercepts the kernel API calls that returns the current date and time (GetSystemTime, GetLocalTime, GetSystemTimeAsFileTime, NtQuerySystemTime, GetSystemTimePreciseAsFileTime), and replaces the current date/time with the date/time that you specify.
RunAsDate works under Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, Windows 7, Windows 8, and Windows 10. Older versions of Windows are not supported. There is also x64 version available in a separated download, for using with x64 applications.
Important Notice !!
I get many email messages that say something like “I tried to extend the trial period of xyz software with RunAsDate and it didn’t work”. Running a software with different date/time can be used for many legitimate purposes and for these purposes RunAsDate was created. I have never said implicitly or explicitly that RunAsDate can be used for extending the trial period of a software. For some shareware programs, RunAsDate might really work, but many shareware creators are smart enough to detect that the date/time was modified and when they detect the time change, they end the trial period immediately.
Please don’t bother yourself to send me a question about extending the trial period of a software, because this kind of messages is simply deleted without answering.