Please tell me the concept of Soap protocol in ASP.NET?

Hi,

SOAP is a simple XML-based protocol to let applications exchange information over HTTP or SOAP is a protocol for accessing a Web Service.
A better way to communicate between applications is over HTTP, because HTTP is supported by all Internet browsers and servers. SOAP was created to accomplish this.
SOAP provides a way to communicate between applications running on different operating systems, with different technologies and programming languages.
SOAP stands for Simple Object Access Protocol
SOAP is a communication protocol
SOAP is for communication between applications
SOAP is a format for sending messages
SOAP communicates via Internet
SOAP is platform independent
SOAP is language independent
SOAP is based on XML
SOAP is simple and extensible
SOAP allows you to get around firewalls
SOAP is a W3C recommendation
While studying SOAP you should have a basic understanding of XML and XML Namespaces.
check the following urls SOAP with ASP.NET Webstervice,
http://www.sitepoint.com/net-web-services-5-steps/
http://www.codeproject.com/KB/webservices/aspwebsvr.aspx
http://msdn.microsoft.com/en-us/library/ms972326.aspx

Also see following link,
http://www.c-sharpcorner.com/UploadFile/jgodel/SOAPNETCOMIntroductionpartI11162005042800AM/SOAPNETCOMIntroductionpartI.aspx