Hi

I want to learn that which CMS software microsoft.com and sw-soft.com using.

extensible
good web technology
user management
pool
and another properties....

More often than not, huge companies like Microsoft get large programming firms to design their website software, or *concept bell* they are a software company - they can do it themselves! Ha!

:)

Have a read of this, http://www.microsoft.com/backstage/bkst_column_40.mspx this is how Microsoft manages their website. Not something to be attempted by the faint hearted.