Here's some advice you might want to take into consideration:
Keep an install of Combat Arms handy
Well for me, I kept getting my errors with HackShield and Combat Arms because my computer wasn't even recognizing CA as being installed. I went to uninstall it so I could download it and re-install it, but I got the message "This game is not installed". Keep in handy in case of this happening.
Inject the bypass using a seperate injector
The injector used can be disliked by some computers and may not work, so when you open it up and hit OK expecting it to inject, sometimes it doesn't even stay open. I suggest doing this:
-Copy the Auto Injector exe and settings file (not the chams .dll) for the Cham hack folder.
-Go into the settings and changing the .dll from Longevity Cham Hack.dll to HackShield Bypass.dll. Now File>Save and run the bypass and then the cham hack, they should both be ready for auto-injection.