Using that latest version NoDevFee_v0.2_x64, I made a dummy bat file with it to try and call at the same time at startup. It just includes your exe and my wallet address just to see how it would act. I at least now get a pop up "CreateProcessW error #2".
ERROR_FILE_NOT_FOUND2 (0x2)
The system cannot find the file specified.
https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx
Current version of nodevfee doesnt inject in already running / launched by 3rd party miner. It should be located in same directory as EthDcrMiner64.exe and should run it by bat file nodevfee.exe EthDcrMiner64.exe YOUR_PARAMETRS. You can inject nodevfeeDll.dll (no need for nodevfee.exe) in already running EthDcrMiner64.exe manually using external 3rd party DLL Injector if you know what you are doing though. Also need to inject right away after start, because it takes your wallet from first connect packets. I can not suggest trustworthy DLL Injector tool right now, need to google and test. Be careful with that (dont download viruses
) 
I use a miner client (AwesomeMiner) and it generates the bat file on the fly (among other cool things). You can add miner command arguments and you can have it auto start an external bat or exe. No combination of any of that is working for me. In fact in your standard version, test log version and error report version, all I get is a quick DOS flash?
You are doing right thing though, respect developer. I dont think his income will decrease much if dozen people use nodevfee, look at his dev fee wallets. I also think donations should be by free will, not forced fees and programs open sourced for futher development & innovation.