HitmanPro.Alert prevents 0patch Agent from injecting into processes

HitmanPro.Alert * prevents 0patch Service from registering 0patch loader DLLs for injection into processes, effectively entirely disabling application of our patches without any notification. Some of the symptoms are:

1. The list of applied patches in 0patch Console (PATCHES -> APPLIED PATCHES) is empty.
2. 0patchService.log (in C:\ProgramData\0patch) contains these lines for every time 0patch Service is started:
   ERROR! ServiceMain: 0patchDriver injecting 0PatchLoader.dll failed!!!
ERROR! ServiceMain: 0patchDriver injecting 0PatchLoaderX64.dll failed!!!
3. There is no associated alert by HitmanPro.Alert and no associated event in HitmanPro.Alert event log indicating this problem.

We tracked this issue to HitmanPro.Alert's "Exploit Mitigation" module; it can be resolved by making an exclusion for 0patch Service executables:

1. Launch HitmanPro.Alert.
2. Under Settings (the cog in the upper right corner), make sure "Advanced Interface" is enabled.
3. Open "Exploit Mitigation", then click "Applications".
4. On the "Your applications" screen, scroll to the right to see the "Exclude" section.
5. Click "Add exclusion - Browse to application" and add C:\Program Files (x86)\0patch\Agent\0patchServicex64.exe
6. Click "Add exclusion - Browse to application" and add C:\Program Files (x86)\0patch\Agent\0patchService.exe
7. Restart the computer (Important - the change only seems to take effect after a restart!)

 
After the restart, you should start seeing applied patches listed in 0patch Console, indicating that patching now works.

(* Our testing was done with HitmanPro.Alert 3 build 3.20.2.2019, downloaded in August 2025.)