Steps:
1. Open Start > Run
64-bit windows
2. Type "C:\Windows\SysWOW64\notepad.exe" and Accept
32-bit windows
2. Type "C:\Windows\System32\notepad.exe" and Accept
3. Open procexp64.exe and find notepad.exe process
4. Right click the process > properties and make sure it is 32-bit process (64-bit windows only)
5. Right the click process and click "suspend" (in procexp)
6. Then open GoS loader and type notepad.exe
7. Make sure it is the only process running (notepad.exe)
8. Then click "yes" when the box appears in GoS Ext loader
9. Then go to procexp64/32.exe, right click the "notepad.exe" process and click "Resume"
9.1. To verify everything is okay, go to procexp > View > Lower pane > Checkbox DLLs
9.2. Click the "notepad.exe" process from procexp64/32.exe and select it
9.3. If you can find new.dll (injected by GoS loader) then you know everything worked okay
10. Open league and enjoy!

Notes:
You can inject into any process, as long as its 32-bit process if you are on 64-bit windows, or 32-bit process on 32-bit windows since 64-bit process don't run there.
Also new.dll (inject stub) is 32-bit only so it's why you can only inject into 32-bit process (for now).
To Feretorix:
Implement Heavens-Gate selector into your Loader to allow people to freely inject into WOW64 on 64-bit Windows from your 32-bit injector without conflict (provided that you have a x64 DLL stub as well).
Downloads:
Edited by entry0x8, 28 September 2017 - 10:14 .