Thanks for the reply Bryant. Just to explain, I'm a software engineer and I've written DLLs myself, using VC++. Just mentioning that so you can aim replies at the right technical level.
Here's the directory for the path where I put the WavPack DLL:
Directory of C:\Program Files (x86)\Nero\Nero 12\Nero Burning ROM\AudioPluginMgr
10/14/2012 11:02 AM <DIR> .
10/14/2012 11:02 AM <DIR> ..
08/01/2012 09:20 PM 241,048 APM_AC3.dll
08/01/2012 09:20 PM 144,280 APM_Aiff.dll
08/01/2012 09:20 PM 242,584 APM_DefConvertor.dll
08/01/2012 09:20 PM 155,032 APM_mp3PP.dll
08/01/2012 09:20 PM 606,616 APM_mp3pro.dll
08/01/2012 09:20 PM 542,112 APM_MSAxp.dll
08/01/2012 09:20 PM 237,464 APM_NeFlac.dll
08/01/2012 09:20 PM 134,552 APM_NeroDigital.dll
08/01/2012 09:20 PM 1,295,768 APM_OGG.dll
08/01/2012 09:20 PM 130,968 APM_Wav.dll
08/01/2012 09:20 PM 198,552 AudioPluginMgr.dll
08/01/2012 09:20 PM 936 AudioPluginMgr.manifest
08/01/2012 09:20 PM 1,522 COPYING.FLAC
08/01/2012 09:20 PM 25,765 COPYING.LGPL
08/01/2012 09:20 PM 1,498 COPYING.XIPH
08/01/2012 09:20 PM 374,680 lame_enc.dll
10/12/2012 11:42 AM 290,816 nxWavPack.dll
08/01/2012 09:20 PM 838 README
It looks like it fits right in, seeing OGG and AC3 there etc.
I went through all the menus on Nero Recode and Nero Burning Rom and could find no "plugin manager." Perhaps I missed it or perhaps it's located in a different application.
Yes I did restart Nero Recode. Actually it wasn't running when I copied the DLL. Additionally I tried it again today with no good results.
As another experiment I noticed that Nero Recode has it's own folder at "C:\Program Files (x86)\Nero\Nero 12\Nero Recode" so I dropped a copy of the DLL in there, again to no good result.
Additionally Nero 12 is beginning to look pretty bloated to me and I'm starting to think along the lines of seeing if I can find the install files for Nero 9. Can you confirm that Nero 9 works with the DLL? In any case I'll report back if I can get anything to work.
I am going to get WavPack working one way or another here. The only question is what I'll end up using and how long it will take me to fix it. I've worked in software engineering for decades and I never give up!
BTW I tried the Win32 command line WavPack programs too and succeeded in getting my .WV converted to .WAV but it was one humongous track not broken up into individual tracks. So close yet so far away...