1. Download the install the Windows Installer Clean Up utility. Click 'Start,' click 'All Programs' and then click 'Windows Installer Clean Up' to open the Windows Installer Clean Up utility.
2. Select the network-related program that you are getting the error from by clicking on it.

3. Click 'Remove' to uninstall the network-related program from your computer.
4. Reinstall the network-related program. You should now be able to open it without receiving an error message.