You can follow the following steps to solve the problem:
1. Click Start?, click Run?, type dcomcnfg?, and then click OK?.
2. Right-click the computer you want to configure, and then click Properties?.
3. Click the Default Properties tab, and then click to select the Enable distributed COM on this computer check box, if it is not already selected.
4. Click the logo in the Default Simulation Level box, then click OK, log out of the computer, and then log in again to solve the problem.