This error can happen when the MSP global.mpt file has become corrupt.
To resolve the issue:
- Close MSP.
- Delete the global.mpt file under Documents and Settings\username\Application Data\Microsoft\MS Project\ (if you find more then one copy delete them all).
- Open MSP and then close MSP Double-click on MSPAdd2k.mpp.
- Click on Enable.
Note: Do not delete the global.mpt file located under the folder where MS Project is installed.
Keywords: ClarityKB, MSP, Microsoft Project, MSPAdd2k.mpp, Global.mpt, MSP.