The package will be installed together with the Windows Mobile 6.5.3 DTK. A command line window will pop up in the process and will close by itself. Do not try to close it manually.
If the Cellular Emulator is running or a virtual COM port is occupied, the uninstall process will be terminated. Before starting to uninstall, please make sure that the Emulator has been exited and no other application is running on the virtual com port.