I have did following steps.
1. Install Fences
2. Disable DefendPoint service
3. Uninstall Fences
5. Disable DefendPoint service
6. Install Fences
And I found following screenshot for your information.
there will have an event with ID 0 when I shutdown Defend Point service.
but fences still not working, you can see two error records above.
What I guessing is Fences needs .NetFramework 3.5 to working properly (in readme.txt file), but even when I manually reinstalled framework, it still calling 4.0, check below.
Anyway, I am start using other desktop organization application instead, you can keep tacking this issue or leave it, but I am really expecting your new build can resolve this issue.