Microsoft EES vs. Perpetual Licensing - which is more cost effective?
Very generally speaking we found that Microsoft have priced the desktop platform products (Windows 7 Upgrade, Office 2010, and Core CAL or Enterprise CAL suite) very attractively, e.g. they will be cheaper under EES if you upgrade within 8 years.
Interestingly though, this is not necessarily true for the server products, and using the Windows Server Operating System license as an example, we found that EES is comparable to a perpetual license after 3 years.
The EES program rules state that you must license at least one of the desktop platform products according to your FTE count, so it is perfectly acceptable to license your server infrastructure with perpetual licenses (with or without software assurance) if you wish.
If you would like assistance determining the best course of action for your organisation, just give us a call on 0845 557 6310 or use our contact form.