Instruction:
1. Download the file from the given link.
2. Turn off your AV (for key generator purposes - its safe, don't worry).
3. Extract the file
4. Install Fake Webcam 7.4 (Setup.exe) ...after installation, do not run yet.
5. Copy RunAsDate.exe to Fake Webcam folder from /Program Files then run it.
6. From RunAsDate program, locate the FakeWebcam.exe from /Program Files
7. Set date to run the program on 01/01/2000 12:00:00AM
(Actually, any time, month and date but year must not beyond 2007)
8. Uncheck "Move the time forward..."
9. Check "Immediate Mode - ..."
10. Type any filename you want then hit "Create Desktop Shortcut".
11. Close RunAsDate then open Fake Webcam shortcut made by RunAsDate to your desktop.
12. Type any email (even does not exist).
13. Copy Registration Code.
14. Open KẹyGẹn.ẹxẹ from extracted folder awhile ago.
15. Replace 30000-00000000 by the Registration Code you've copied.
16. From the drop down list box, choose Fake Webcam 4.0/4.5.11.0
17. Hit Generate button then copy the License Key generated.
18. Back to Fake Webcam program, paste the License Key you've copied then hit Ok button.
PS: Everytime you use Fake Webcam, use the shortcut made by the RunAsDate to your desktop.
Feel free to ask me when you don't get any of the steps.
I've tried it myself.
Enjoy!