Facilitating the spread of knowledge and innovation in professional software development



Choose your language

InfoQ Homepage News ASMX or WCF Web Services?

ASMX or WCF Web Services?


Since version 1, ASP.NET has supported web services via the ASMX files. With .NET 3.0 and the Windows Communication Foundation (WCF), you have an entirely new way to expose and consume web services. So do you convert to WCF or leave everything as ASMX?

Starting with a preexisting ASMX-based web service, Thom Robbins shows how to add the necessary contract information to use the ASMX service as a WCF end point. The end result is a dual-mode service that can handle both traditional web service and WCF requests.

The lengthy instructions do raise the question, "Is WCF too complex?" If ASMX-based web services just work, why would you want to take the extra effort to develop a WCF solution?

Microsoft often touts the somewhat debatable advantages of a unified programming model, as well as advances in security and transactional integrity. When questioned about the latter, Thom Robbins offered the MSDN article, What is the Windows Communication Foundation?, as a starting point.


We need your feedback

How might we improve InfoQ for you

Thank you for being an InfoQ reader.

Each year, we seek feedback from our readers to help us improve InfoQ. Would you mind spending 2 minutes to share your feedback in our short survey? Your feedback will directly help us continually evolve how we support you.

Take the Survey

Rate this Article


Hello stranger!

You need to Register an InfoQ account or or login to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Community comments

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p


Is your profile up-to-date? Please take a moment to review and update.

Note: If updating/changing your email, a validation request will be sent

Company name:
Company role:
Company size:
You will be sent an email to validate the new email address. This pop-up will close itself in a few moments.