.NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: D:\Apps\SQLServer\100\Tools\Binn\VSShell\Common7\Tools\VDT\DataProjects.dll . Error code = 0x8007000b

So, I installed SQL Server 2008 and changed my TCP/IP port

Why ? you'd ask

Ah am just too paranoid..thats why.

Anyways, I do that and try to connect and SQL Server Gods get angry on me

"Msg 18456, Level 14, State 1, Server , Line 1
Login failed for user ''"


".NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: D:\Apps\SQLServer\100\Tools\Binn\VSShell\Common7\Tools\VDT\DataProjects.dll . Error code = 0x8007000b"

I restarted my server...and the issue seems to have fixed. 

Now I know what to do next time !!!