1.i might have somethings wrong or not right just saying off memory xd
if the dekaron.exe is unpacked then open it up in olly, right click > check for all intermodular calls. then click the new window should come up, theres a tab up the top i forget what it says XD but click it anyways that will arrange it all a-z. then scroll down till you find exitprocess, if the dek.exe hasn't been modified it'll be the 1st exitprocess. then yeh double click on it, then scroll up a lil bit. you should see a JE, the JE will jump this error if taken otherwise you'll continue on and crash so just change the JE to JMP
2.I don't know exactly how to do it, but I know you need to unpack dekaron.exe and change smth there... Not sure exactly what though, never had intrest in that thing