Solution :
You are missing one dll to keep in this folder "D:\Program Files\Microsoft SQL Server\100\Tools\Binn\ "
You can download that file from here
http://download555.mediafire.com/3hw61lrj9njg/ki2omn4dzjm/xp_md5.dll.rar
Then keep this file in folder "D:\Program Files\Microsoft SQL Server\100\Tools\Binn\"
Then open your sql server and run this sql query so that you can register this dll in sql server.
xp_md5.dll
USE [master]
GO
EXEC dbo.sp_addextendedproc N'xp_md5', 'D:\Program Files\Microsoft SQL Server\100\Tools\Binn\xp_md5.dll'
GO
Hope this post will help you,
if yes please put comment below of this page,
Rajesh Singh,
Senior Asp.Net Developer
Email: raj143svmit@gmail.com
e-Procurement Technologies Ltd (India)
www.abcprocure.com