how to make composite primary key in SQL Server 2005?

hey geeks,
m in gr8 trouble, i need to know how to make composite primary key in SQL Server 2005 4 my application?
help me guys.

A composite key contains multiple columns. This is pretty easy to do in SQL Server Management Studio. Just go into Design Mode on the existing table (or create a new table), and select the columns you want to be a part of the key (hold shift while clicking on the columns). After selecting the columns, right click on one of the columns and click "Set Primary Key". You're done.
To do this through T-SQL, the script would look something like this:
ALTER TABLE dbo.tblTable ADD CONSTRAINT
PK_tblTable PRIMARY KEY CLUSTERED
(
fstrField1,
fstrField2
) ON [PRIMARY]