The answer is "yes". Please follow below steps:
1. Export WFilter settings to a file in "System Settings"->"Import/Export Settings".
2. De-activate the key in "Help"->"About".
3. Install the last version of WFilter in the new server. the last version can be downloaded from:
http://www.imfirewall.us/download_trial.htm
4. Active WFilter license in the new server.
5. Import the exported WFilter settings.
6. Check "System Settings"->"Monitoring Settings" to make sure the monitoring adapter and blocking adapter are correctly configured.
7. Done.