steve.herbst@inficon.com,
The easiest solution is to install Abyss Web Server on a 32-bit Windows and copy all the files in the installation directory to the computer running 64-bit Windows.
Remove the abyss.conf file and start Abyss Web Server on the second computer and it will run normally and recreate abyss.conf.
If you fail to perform these steps, please let us know and we'll send you a ZIP file containing the 32-bit files to deploy.