Database Mirroring

Hi All,
Does anybody know the OS requirements for Database Mirroring? I checked BOL and Google but couldn't find any info on that.
Thanks.http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirfaq.mspx

Q.What are the different licenses available for mirroring?
A.The witness can be any edition of Microsoft SQL Server 2005.
If a partner uses the SQL Server 2005 Standard Edition, the safety must be FULL, and REDO is single-threaded.
In SQL Server 2005 Enterprise Edition, the feature is fully implemented, and lets you turn the safety OFF and have REDO multithreaded.

SQL Server 2005 Std is supported on:
Microsoft Windows 2000 Server with Service Pack (SP) 4 or later; Windows 2000 Professional Edition with SP 4 or later; Windows XP with SP 2 or later; Windows Server 2003 Enterprise Edition, Standard Edition, or Datacenter Edition with SP 1 or later; Windows Small Business Server 2003 with SP 1 or later
http://www.microsoft.com/sql/editions/standard/sysreqs.mspx

SQL Server 2005 Enterprise is supported on:
Microsoft Windows 2000 Server with Service Pack (SP) 4 or later; Windows Server 2003 Standard Edition, Enterprise Edition, or Datacenter Edition with SP 1 or later; Windows Small Business Server 2003 with SP 1 or later
http://www.microsoft.com/sql/editions/enterprise/sysreqs.mspx

-a|||Do the OS requirements change based on the database high availability option you select?|||Don't be lazy, read the links I posted. The answers are in there.|||Thanks for the info.|||No problem :)