.ASMX File Extension

ASP.NET Web Service File

Developer Microsoft
2.6  |  15 Votes

What is an ASMX file?

Defines web services called by an Active Server Page (.ASP file); automatically compiled by ASP.NET when a request to the service is made; can be accessed over the Internet or from a local network.

More Information

ASMX files begin with the ASP.NET directive "WebService," followed by the "Language" parameter. This is used to set the programming language to Visual Basic, C#, or JScript. They can be run using a Windows-based web server with the .NET framework.

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Programs that open or reference ASMX files

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