Is this JZ what I'm looking for? Is it just change it to JNZ? What about future updates... Can you help me write a patcher for this JZ?

I lost my DK2 dongle (6C6B66) for this application (Win32 PE Executable) and ordered a replacement for $350 and was reissued code for use on the new dongle (6A0025). I have sent back the replacement dongle and the vendor now wants to charge me 2 hours labor plus a restocking fee to reissue the code for use on the old dongle (6C6B66). I would rather not give the vendor even more money than I already have on top of the original software itself and instead make the application coded for 6A0025 work for 6C6B66. I have attempted to reverse this myself but since this is my first time ever doing any kind of debugging work I think I'm close but I just don't know what to make of it. I have since mailed back the replacement dongle (6A0025) and no longer have access to it for reversing but before I did I was able to run some preliminary debugging on it and what I noticed is: sub_22CEA80 .descode:022CEAAD call ds:CreateFileA .descode:022CEAB3 mov ds:hObject, eax .descode:022CEAB8 cmp ds:hObject, 0FFFFFFFFh .descode:022CEABF jz loc_22CEAD4 <-- Old dongle and New dongle will both break here .descode:022CEAC5 mov ds:dword_22CFE40, 1 .descode:022CEACF jmp loc_22CEB57 <--- incorrect dongle would never break here. Correct dongle would. The goal of this small job is to modify the small application to be fully functional on my old dongle. Upon acceptance of this job I will provide to you a username, password and hostname for which to connect to forremote access to the dongle, the application we are working on, and IDA-Pro preloaded using Microsoft Remote Desktop / Terminal Services. Goals: - No longer fails to execute with the error 'DESLock for Windows: You do not have authorisation to run this Application - Main Application window opens and the 'Compare' option from within the 'File' menu is shown and the form will open. - Application Updates using [login to view URL] will download a new executable that will break again. Ideally a patcher for when this happens that include your code fix will be provided. I really look forward to your assistance and I hope that you make some quick cash this holiday weekend. I'd estimated about 1 hour of time and would like to be back to using the software ASAP!