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DCOM Error 7404 1/19/2009 8:50:57 AM

The server could not load DCOM. [SQLSTATE 42000] (Error 7404).  The step failed.

Began receiving this error from failed sql server jobs on a sql server 2000 box and a windows 2000 box, after a reboot.

We didn't spend too much time researching the issue, as we were still in a maintenance window, so we performed another reboot and things worked fine.

I've seen many dcom errors over the years, but not this particular one from SQL Server, most likely com+ or ms dtc sub-systems (services) did not start or failed to start on the reboot.  There were no system or event log entries that were immediately helpful, though there were other odd entries that seemed related to dcom not working:

The server {73E709EA-5D93-4B2E-BBB0-99B7938DA9E4} did not register with DCOM within the required timeout.

The NetBackup SAN Client Fibre Transport Service service failed to start due to the following error:

The service did not respond to the start or control request in a timely fashion.

Timeout (30000 milliseconds) waiting for the NetBackup SAN Client Fibre Transport Service service to connect.

BMSS failed to bind to a network interface card (NIC) because none was specified in the registry. Check the registry to make sure the network bind policy is correct.


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