Windows 2008 evaluation license period

if you are evaluating Windows Server 2008, you should know that license activation is not required. An evaluation version of Windows Server 2008 will work for 60 days. While many admins do not know it, you can “re-arm” that evaluation period for another 60 days, three times over. Thus, you could evaluate Windows 2008 Server for a total of 240 days, or about 8 months.


As administrator you should execute the following command to extend the evaluation period.


slmgr.vbs /rearm


After this command you must restart windows server ... yesss it is Microsoft Windows.