When I run Audiograbber 1.83 for the first time, I click the Player button to associate it with my default and/or favorite media player software - Windows Media Player v12...

However, my Operating System is Microsoft Windows 7 Ultimate 64-bit,
and it has "two" WMPs, the Windows Media Player v12 as a 32-bit version (in "C:\Program Files (x86)\Windows Media Player" folder), and 64-bit version (in "C:\Program Files\Windows Media Player" folder)...

The problem is that I accidentally associate the Player button via Audiograbber 1.83 to WMP v12 64-bit, instead WMP v12 32-bit version...
It is important that I set it up this option again to WMP v12 32-bit version and I did not know how to do that...

Any superficial changes via any file configuration in "C:\Program Files (x86)\Audiograbber" folder will not give any postivie result with this problem, and I was not be able to found the culprit command for this problem in Windows Registry (Regedit) also...

Answer for the others - How I sucesfully and simply solved my above mentioned problem:

I just, for the moment, rename to some other name, the "Windows Media Player" folder via ""C:\Program Files" - this is a 64-bit Windows Media Player location...
Then run Audiograbber 1.83, and push the Player button. Now, he will ask AGAIN that he cannot found default player, bla, bla, bla..., so, reassociate this Player button now with Windows Media Player from "C:\Program Files (x86)" folder - this is a 32-bit Windows Media Player location, which I in fact want...
Finally, back rename the "Windows Media Player" folder via ""C:\Program Files" - this is a 64-bit Windows Media Player location, to its originate name, and everything runs OK now as I want...

At last note, If anybody ask, Audiograbber 1.83 runs OK on Microsoft Windows 7 Ultimate 64-bit Operating System...