Not to sound cliché' but have you tried to reinstall and see if there was a registration problem with that cfg file? Are you having any success with the other tools? What OS are you using?
I too am having the same problem as the original poster. We have tried reinstalling (no problems that we can see with the cfg file during the installation) on our Windows Server 2003 system. Some components (such as Bandwidth Gauges, Real Time Interface Monitor, & IP Address Management) do work, but others (like IP Network Browser, and DNS & Who Is Resolver) do not work after the upgrade.
If Scaling.cfg exists in the location that is specified in the error message, the problem is likely related to the Microsoft XML parser version 3. Try the following:
- Search your hard drive for the file msxml3.dll. It should be located in the \windows\system32 directory.
- Run this command from the directory where msxml3.dll is located: regsvr32 msxml3.dll
- Restart Network Performance Monitor
Let me know if this works.