Error establishing connection to JDBC

Hi guys,
I'm doing a JDBC to file scenario. I'm using MS SQL as my database. I'm getting an error as class not found 'com.microsoft.jdbc.sqlserver.SQLServerDriver'
I wanted to know have i provided the JDBC driver correctly for MS SQL,
Also I've given the connection URL as
jdbc:microsoft:sqlserver://hostname:1433;DatabaseName=Employee
Is this a correct way??
If not please help me on this guys and tell me the correct connection establishment parameters...
Thanks
Varun

http://www.microsoft.com/downloads/details.aspx?FamilyID=6D483869-816A-44CB-9787-A866235EFC7C&displaylang=en
Find the right driver there and deploy the JDBC driver using SDM.
JDBC Driver Deployment Guide -
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/70ffd890-0201-0010-708f-d5dad2dfcf3a

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Im using JDBC comm channel. JDBC driver has been insatlled for SQL Server 2000 (SP3) .
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