OpenCV 2.3.1 tbb.dll missing : solution

Hi 

        When i compiled opencv code using  OpenCV 2.3.1 on Windows 7  i got a run time error called 

"tbb.dll not found "

This is the fix for this issue

1)Download the tbb file for windows

http://threadingbuildingblocks.org/ver.php?fid=171 

2)Set Env_variable  

Add Path in the System Variables

H:\Others\OpenCV-2.3.1\release\tbb30_20110427oss\bin\ia32\vc9  

For example ,Put tbb files on release folder  .This example settings is for VS9 and intel 32 bit