This SIS file represents information on upgrades to commercial 
Palmtop BV products. Install it in the usual SIS fashion.

If you're in any way unsure about installing SIS files, or require
more information about the original products, 
please refer to Palmtop BV's web site, www.palmtop.nl

Note that it goes without saying that you must have some full 
commercial products already installed for this upgrade to work.