Re-arm trial Server 2008+

While doing labs, applying snapshots and whatnot the licensekey sometimes disappears or you just dont wanna waste an activation on a testmachine.

To re-arm a Server triallicense

Elevated Cmd-prompt

Check current licenselevel

/>slmgr.vbs –dli

Extend the evalution period with another 60 days

/>slmgr.vbs –rearm

Server can be rearmed up to 3 times giving you a total of 240 days.

References:

http://support.microsoft.com/kb/948472

http://blogs.technet.com/b/johnbaker/archive/2009/08/29/extending-your-evaluation-activation-grace-period-on-windows-server-2008-and-2008-r2.aspx