Solve the problem that MMC cannot open the msc File)

It was initially installed with SQL Server2000. After installation, you cannot open Enterprise Manager (SQL Server Enterprise Manager. MSC ). The SQL Server cannot be reinstalled several times.
Solution A. by region:
Check whether the file exists on your hard disk. If yes, you can get it to another partition to see if it can be opened:
C: \ Program Files \ Microsoft SQL Server \ 80 \ tools \ binn \ SQL Server Enterprise Manager. MSC
If this file does not exist, the file is lost.
If it can be copied to another partition and opened, your C: disk is faulty.
If the file cannot be copied, the file may have been damaged and deleted.
Create this file. In the run dialog box, enter MMC.

Console -- add/delete snap-in -- add -- find Microsoft SQL Enterprise Manager -- add -- close -- OK
Go back to the console
Again: console -- option -- select "user mode full access" in Console mode -- Cancel all the options below
Then: console -- save as -- Storage: C: \ Program Files \ Microsoft SQL Server \ 80 \ tools \ binn \ SQL Server Enterprise Manager. MSC

Solution B. Run SFC/scannow in cmd and the system requires an XP SP2 disc. This solution failed
Solution c.w.mscfile is not associated with mmc.exe. Yes
Solution d. Found this method in http://beta.experts-exchange.com/Ope.../WINXP/q_20649911.html:
Run
Regsvr32 c: \ windows \ system32 \ msxml3.dll
After completion, the system message is displayed.
The dllregisterserver in c: \ windows \ system32 \ msxml3.dll is successful!
Finally, I used Solution d to get started.
From: http://blog.sjzj.com.cn/article.asp? Id = 404