Troubleshooting a FeatureCAM Dongle / PAF issue

Here is the text from a post on CNCzone:

"None of my FeatureCam versions see either of my Dongles. I was messing around trying to load Ez-Cam 6.21 on an XP machine (stupid idea) and I think I inadvertently loaded the Ez-Cam Sentinel files on the pc corrupting all Sentinel files for FeatureCam. What are my chances for curing this problem short of un-install "ALL" versions then reloading them all again.
Thanks in advance for any help."

In my experience, the anti-piracy measures almost never work the first time installing. This may be more operator error on my part, but in situations like the one above, knowing how to re-install may save hours of delay while trying to contact customer support. A similar process may work for any dongle secured software, but your mileage may vary.

Assuming you have a clean copy of you PAF, you should be able to delete the old one,(C:\dcam\config\pass\*.paf.)
Then go to "Add or Remove Programs" in Control Panel and remove the two Sentinel programs.
After that is done put your clean copy (should be in an e-mail from Delcam) of the .paf file in the pass directory. 
Start featurecam, then install dongle when prompted. Odds are this will fail, and you will have to run the PAFwizard.
use "Check dongle" then "Check PAF" 

There are links to the manual and drivers for the Sentinel dongle on my documentation page if you want to dig deeper, they have tools that may help more than the PAFwizard that comes with FeatureCAM