I was going through my shelfs and found a Windows Web Server 2008 R2 . Since I moved my web sites to Azure I am not using this license any more.
Do you want this DVD and License ? Or just the License ?
You can install NAV Server on this version. Everything will work except the NAV Help Sever. NAV Help Server requires Windows Search Services that are part of the File Sharing Role and that role is not included in Windows Web Server 2008 R2.
Send me a line.