File Extension Database

Open ASAX File

ASAX files are extension files used by Microsoft's ASP.NET to allow the application to handle application-level events. These files are written in any .NET language, including C#, VB.NET, or JScript. The name stands for 'Application' 'Server' 'Application eXtensed', a file format developed by Microsoft. This means that the ASAX files are specifically ASP.NET Application files. In this article, we will look at the possible formats and ways to open/use files with ASAX file extensions.

Working with ASAX Files

ASAX file contains scripts that run in response to application-level events, such as Application_BeginRequest and Application_EndRequest, raised by ASP.NET or by HTTP modules. Typically, you may not have to directly interact with ASAX files as they are automatically created and maintained by the ASP.NET framework. However, on certain occasions, you may need to manually modify these files, such as for custom error handling or event logging.

Opening ASAX Files

The Visual Studio IDE is generally used to open and edit ASAX files. By opening an ASAX file in Visual Studio, you gain access to a suite of powerful tools and features that can assist you in writing and editing the scripts contained within. You can also open and view the contents of an ASAX file using a simple text editor. However, to interpret and implement the scripts, a server capable of processing ASP.NET, such as an IIS server, is needed.

ASAX File Important Information

ASAX files are integral to the proper functioning of an ASP.NET application. They are essentially the blueprint that the server uses to handle application-level events. Tampering with these files can potentially cause the server to either interpret the scripts incorrectly or halt the execution altogether. Hence, care should be taken when working with these files. Always maintain backup copies of your ASAX files and only use trusted ASP.NET development tools. Further, ensure that your server has the latest ASP.NET framework installed to ensure compatibility with all features and functions that an ASAX file might use.

Typical ASAX application file locations:

"g:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe" /dde
c:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe /dde
"C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe" /dde

Typical ASAX mime types:

application/xml

Frequently used application names to open ASAX files:

Microsoft Visual Studio 10.0
Microsoft Visual Studio 9.0

Frequently associated Windows objects:

VisualStudio.asax.10.0
VisualStudio.asax.9.0

How Can I Open ASAX File on Windows

We researched and learned that the best way to open ASAX file is to find a ASAX file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a ASAX file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open ASAX file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as ASAX file opener then try to search online for "ASAX viewer", "application to open ASAX file" or "open ASAX file" queries in the search engine you like.
Install the application you found and check if it can open ASAX file

How Can I Open ASAX File on Mac OS

We recommend to find a ASAX file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a ASAX file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with ASAX file.
If you know the Mac OS application which can work as ASAX file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open ASAX file in it.
If you don't know the application which can open ASAX file then try to search for "ASAX viewer", "application to open ASAX file" or "read ASAX file" queries in the online search engine you like.
Install the application you found and check if it can read ASAX file

How Can I Open ASAX File on Android

If you downloaded a ASAX file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded ASAX file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "ASAX".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "ASAX viewer", "ASAX file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open ASAX File on iPhone or iPad

To open ASAX File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the ASAX file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "ASAX". This way you can find apps which can open ASAX files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "ASAX viewer" or "ASAX file" online in your favorite search engine.

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