I want to upgrade a server from 2008 standard to 2008 R2 standard.
The server is an OEM license.
Is it possible to do the upgrade with OEM license too? or I need a retail or volume license?
In 2008 server there are installed terminal server licenses, are they valid for 2008 R2?
Microsoft's licensing over view for Windows 2008 R2
http://www.microsoft.com/en-us/download/details.aspx?id=18795