The included "Handnet.old" file has had the extension changed to "old". This has been done due to virus protection software stripping EXE files. Simply go to a DOS prompt and change the extension back to EXE.
AFTER making the change to the extension, make sure Handnet for Windows is shutdown, overwrite the existing file and re-start the software. Go to HELP/ABOUT HANDNET FOR WINDOWS, and you should see the version is now 2.0.3.36
 