IE6 Build Check

[mhutcheson]

Due to the July 13 end of life support for IE6 minus SP3, I am planning on checking the build version of the browser once logging in. I am able to return the browser major and minor versions but cannot find a way to get to the build/patch version which tells what SP the user has. Is there a way of doing this? I need to confirm the user is using an IE version higher than 6.00.2900.5512.

Thanks.