MIDIWizard is indispensible for creating backups of single programs or your whole setup, modifying programs, and loading. For example, Dieter has a huge library of great programs that others have put a lot of time into, and MIDIWizard makes it easy to try out new sounds. MIDIWizard will even help you troubleshoot problems with your MIDI interface. Plus, the program is easy to use and greatly simplifies the complex range of choices in 2101 programming.
If you have a 2101, you really should get the software (and a USB to MIDI converter such as the Mio). Today.