components installation

I am just a novice, and am curious.I

I was trying subscription, but an error occured: "Microsoft Server Management Studio is un able to accessreplication components because replication is not installed on this instance.

I went to change, located my setup exe, installed. but at the end, I get this message: No selected features can be installed or upgraded. Setup cannot proceed since no effective change is being made to the machine......

I downloaded the Express edition via MSDN download.

May somebody please help? What wrong did I do? What did I miss to do?

SQL Server 2005 Express does not include Microsoft SQL Server Management Studio. But SQL Server 2005 SQLEXPRCOMP does.|||There is also a separate download for the Management Express Studio. See this link here for more details:

http://msdn.microsoft.com/vstudio/express/sql/download/

HTH, Jens K. Suessmeyer.

http://www.sqlserver2005.de