Patcher.dll is standard patcher - ApiHookChain is empty. Patcher changes format of displayed number from hexadecimal to decimal. Patcher1.dll is (not so good example of) intelligent patcher. It chages format of message box from OK to YESNO. After running runme.bat you will see normal msgbox (hexa number) then patched msgbox (dec number) then patched1 msgbox (yes,no buttons).