You need to perform 2 steps each to swap to 64-bit version or to undo the change back to 32-bit version WMP. There is second method that make the WMP 11 圆4 as the default media player for the Windows Vista. Alternatively, you can create a shortcut with target and location set to the above path, and place the shortcut on desktop for easy access. However, if you decide to use the 64-bit version of WMP11 with your 64bit version of Windows Vista, especially now that more and more codecs Run, and execute %Programfiles%\Windows Media Player\wmplayer.exe. This is done to avoid and reduce any compatibility issues or problems that may arise with codecs or other DirectShow related plug-ins or add-ons that majority of them still built for 32-bit operating system.
In Windows Vista 圆4 (64bit version), the 32-bit edition of Windows Media Player 11 (WMP 11) is set as the default Windows Media Player.
