SQL Server 2005 Startup error - TDSSNIClient... error 0x5... code 0x51

Hi,

My SQL Server 2005 won't start - can anyone provide some help? This
seems to be the most significant error:
- TDSSNIClient initialization failed with error 0x5, status code 0x51.

There was some info here, but the reg key described looks okay:
- http://blogs.msdn.com/sql_protocols/

I am running SQL Server 2005 64-bit Standard Edition. The server in
question is the first node of an Active/Active Cluster. This first
started happening while I was trying to add a share as a clustered
resource of the other node (not to this node's resources).

I have not yet reinstalled SQL Server 2005 because I am hoping for more
explanation of the problem and a possible fix.

Thanks,

Tom

.

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