How To enable Sound/Audio for Windows when in Bootcamp mode.

So you have installed Bootcamp and Windows 7 and then you realize there's no sound, so this are 4 simple steps you can follow to enable the audio in Windows 7 on Bootcamp.
This is a useful guide if you have the problems like this:
1- You have no audio or sound.
2- In macbook pro, you may also see a red light in your audio jack.

So here's the solution:
1- Download the Macbook Pro Cirrus Logic CS4206A , google “CirrusAudio.10.6.1.zip”. or use the link here.
2- Open and Extract the right type of Driver (depending on your windows XP/ 7/ 32 bit/ 64bit)
3- For Windows 7, Right Click on exe file of driver. Select Properties> Compatibility > Check run in compatibility as shown below. Select Windows Vista from drop down menu and Click OK.
Again, its all depends what version of Windows you use. As for me (win7) you dont have to check anything.

4. Double click the driver and install. Astalavista. DONE !!