This problem is already an old problem. There have been many people before, the following is a content I have answered before, you will try it.
Configuration under 2000: DCOM Configuration
If you run the application server normally in the Windows NT environment, you must perform DCOM configuration. The configuration method is as follows:
1. Run the DCMCNFG program on the NT server for DCOM configuration.
2. Enter the overall default property page of the DCOM, enabling "Enabling Distributed COM on this computer" to hook, change the default identity level to "None".
3. Enter the overall default security mechanism page of DCOM, confirm that the default access permissions and default start permissions have no every, if you don't get out, the application server does not start normally.
4. In the General page, double-click your application server to open your application server DCOM property settings.
5. Change the identity verification level in the regular page to "None".
6. Select "Run Applications on this computer" in the location page.
7. Select "Use Custom Access Permissions" in the security page settings, edit each permission, and join the Everyone into the user list.
8. In the identity page, select "Interactive User".
9.NT Guest users cannot be disabled. Note: The key is, in the control panel - the properties of the Administrators user in the user and password - add Power Users that is affiliated to the plum, other users do this, Guest users are absolutely not disabled
Under XP, configure the XP and the same, but don't do it, you only need to join the default access permissions and default boot permissions in the DCOM configuration. Be
