First it may be nice to unregister the old DLL(I don't know if it matters).
Open up a console window and then go to your apup/bin dir and put this in
regsvr32 /u SSubTmr6.dll
Then, you have to delete the old dll from your system32(or SysWOW64) and replace it with the 2.0 dll. Do the same with the one in the apup/bin folder. Don't forget to re-register the dll(Autopatcher should do it for you but, it seems its having issues doing that).
You register the DLL like this in a console window in apup\bin dir.
If you get 8004005 error then it means that you have some corrupt DLL's in your OS and should run SFC(Windows System File Checker. Just type it in a console that is in admin mode to see how to use it). It also could be that you didn't run console window in admin mode if you didn't.
I am sorry, that wonky 1.1 DLL came with 5.7.5 Autopatcher download. The later editions don't have that. My bad.