In some cases, when trying to re-install the SMP software on windows after a successful uninstall, the installer claims that the SMP software is still installed and will only allow uninstallation.

To remove any leftovers from the SMP uninstallation process, it is recommended to use the Microsoft Cleanup Utility before re-installing SMP. For more information about the Microsoft Cleanup Utility please see here: http://support.microsoft.com/default.aspx?scid=kb;en-us;290301