Following johan's 9/11/2008 post on how to install 2.6 for 64bit Win 7 (see below), I find that clicking the program in the Start Menu does not load. No error messages, no windows open or close, just no response to my double click.
GpsGate for 64-bit / x64 Vista and Windows 7
If you use 64-bit Vista please follow those steps.
(If you are unsure, simply install GpsGate normally first, if Virtual ports does not work - follow those steps)
1. Install GpsGate for Windows 2.6 build 340 (or later)
2. After installation copy the file
C:\Program Files (x86)\Franson\GpsGate 2.0\x64\bizVSerialNT.sys
3. Exit GpsGate (if running)
4. Run GpsGate as Administrator once. (Right click on the GpsGate icon in the Start Menu and select "Run as administrator")
Now the 64-bit driver is installed. You can exit GpsGate and run it as a normal user.