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ASMX File - What is an .asmx file and how do I open it?

Learn about .ASMX files and view a list of programs that open them.

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Overview

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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Popularity2.6 | 19 Votes

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.ASMX File Extension

ASP.NET Web Service File

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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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Microsoft Visual Studio 2022

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Category: Web Files

Updated: May 25, 2009

FAQ

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.

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