Mar 08, 2016 - 10:16 AM
The 90 days you refer to is in regards to adding SA to an OEM license (i belive you still have the ability to do this) within 90 days of the purchase of an OEM license. If you do not want SA you can purchase the upgrade license (I'm not sure which is cheaper, but my guess is that SA only option is).
Hope this helps.
Mar 08, 2016 - 02:36 PM
I believe it simply doesn't work. You can also have it with Ultimate (retail license) as Enterprise you can only have with VL license.