If something goes wrong protected file will usually:

    a) end its execution with an error or
    b) just quit without any error message

You can do the following:

- Please check if your file can be protected with PC Guard software protection system at all. See above notes about executable applications you can not protect.

- Try turning ON one or all of the following options:

- "Compatibility flag 1" option.
- "Compatibility flag 2" option.
- "Compatibility flag 3" option.
- "Enable smart DLL handling" option

- Try turning OFF one or all of the following options:

    - Code, Data or Resource section encryption
    - "Check API hooking" option
    - "Rename sections" option
    - "Check license file position" option
    - "Self checking against modifications" option
    - "Erase import directory data" option
    - "Encrypt import directory data" option
    - "Anti-dumping protection enabled" option
    - "Encrypt internal overlay" option (for files with internal overlay)


Additional tips:

- Turn ON "Compatibility flag 1" option for Adobe Photoshop plugins.

- For Borland C++/Delphi files try turning off data section encryption.

- For MS Visual C++ MFC projects try using "Use MFC in a static library" option instead of "Use MFC in a shared DLL".

- For ActiveX (COM) DLL try turning off "Hide executable object names" option.

- EX4J Applications: Turn OFF AOM (Advanced overlay management) option.

- Protecting a DLL with "Check program filename" option set could sometimes trigger false warning. Turn this option off if you encounter such problem.

- If Sound Blaster PCI 64 sound card is installed on Win9x system try disabling joystick port.

- If Zone Alarm PRO 3 is installed and active in memory update it to the latest version. One particular release of this program was triggering Kernel errors.
 
- If debugger is active in memory unload it before running protected application.

If protected file still refuses to run please send it to us at with detailed error report so we can make further analyzing and testing.

Knowledge base