What error do you get?
Does anything already use port 1433 on that PC? You can use free TCPView utility from http://www.sysinternals.com/ntw2k/source/tcpview.shtml to check that.

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>I have a strange problem in MS SQL 2000.
>I cannot start the sql server services if I used port 1433.
>But I have tried to change the port to 1435 and start the SQL Server service it works fine.
>