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How can I reinstall or reconfigure DCOM?

How can I reinstall or reconfigure DCOM?

(OP)
I had to uninstall then reinstall my NIC to resolve connection to a remote desktop. After the reinstall, I am now getting DCOM errors when I try to connect to my sql server.

"DCOM was unable to communicate with the computer APPL2900 using any of the configured protocols."

How do I correct this? I can't find anything on the web that has worked (I have not tried to repair XP yet).

RE: How can I reinstall or reconfigure DCOM?

(OP)
Turns out I did not have issues with DCOM - the DNS name for the SQL Server computer could not be resolved. After realizing the name was the problem, I went into the hosts file (in the windows\system32\drivers\etc directory) and added the ip address and name of the system I was trying to connect to with SQL Server.  Now that it is in the hosts file, the system is fast again and no more DCOM errors!  

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