ASP.NET Extension Information


ASAX
The Global.asax file, also known as the ASP.NET application file, is an optional file that contains code for responding to application-level events raised by ASP.NET or by HttpModules The ISAPI uses the System.Web.HttpForbiddenHandler to prevent direct requests to this file. This is the ASP.NET equivalent of the global.asa file

ASCX
Used for custom User Controls. When a page is executed with an ASCX reference, ASP.NET uses this extension to process the request. The ISAPI uses the System.Web.HttpForbiddenHandler to prevent direct requests to this file.

ASHX
Custom HttpHandler implemented as a file rather than a separate class.

ASMX
Files with these extensions contain the WebService processing directive and serves as the addressable entry point for XML Web services.

ASPX
Handles requests for ASP.NET requests.

AXD
Used to handle Trace requests (for debugging purposes).

REM
Used to handle .NET remoting.

SOAP
Also used in remoting and handling soap requests.

config, .cs, .licx, .vb, .csproj, .vbproj, .vsdisco, .webinfo, .resx, resources are all source code files. The ISAPI uses the System.Web.HttpForbiddenHandler to prevent direct requests to these files.

For additional ASP.Net-related information, please read our ASP.NET FAQ.

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