Download Windows Media Player 12.0.7 For Windows Vista

Windows Media Player 12 will be the successor of Windows Media Player 11, WMP12 is to be released along with Windows 7. Misaki2009
has managed to pull the WMP 12 files from Windows 7 Build 7000. With following steps you can run WMP 12 on Windows Vista.

Steps 
- copy wmploc.dll in C:\Windows\System32 
- copy Windows Media Player folder to C:\Program Files

Download Windows Media Player 12.0 for Windows Vista 

Or u may try this following Link:
http://hotfile.com/dl/14829823/7754c29/darkprince_Windows20Media20Player12.rar.html