It’s true, you get 60 days to trial SBS. All of SBS, that’s a lot of things to test out in 60 days. Well, you are in luck! With a simple command line you can extend the 60 day trial, another 180 days for a total of 240 days. It’s super easy.
First you need an elevated command prompt. Once you have one of those open, simply run the command line slmgr.vbs –dli. This command takes a few minutes to run, and pop’s up a screen to tell you how long you have left in your evaluation period.
To extend the evaluation period, you can add the extra 180 days from the same elevated command prompt type in the command slmgr.vbs –rearm.
But I must warn you, once you get past day 80, studies have shown that SBS is so addictive, that it will most likely be a major part of your network, and you’ll be committed. So choose wisely if you plan to extend the evaluation period, you could end up buying it!
More details in KB 948472.