Opening an ASA File

The ASA file type is primarily associated with ASP.NET.

ASAFile Extension ASA
File extension: ASA
File type:  startup/termination script

What is an ASA file?

ASA files mostly belong to ASP.NET by Microsoft. An ASA file is a script containing optional methods which run at the startup or termination of an ASP.NET (previously ASP) application lifecycle. This script is usually named Global.asa and saved in the root directory of a web application. ASP.NET is a .NET-based framework for building web applications and services. The ASA file may also contain methods which may be executed at the beginning or end of a network session. Newer versions of ASP.NET use ASAX filename extension instead of ASA. Another type of ASA file is an animation created by the ArcScene data visualization application in ArcGIS software suite.

How to open an ASA file

You need a suitable software like ASP.NET to open an ASA file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ASA file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ASA file directly in the browser:. Just drag the file onto this browser window and drop it.

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Programs that open and convert ASA files:

  1. ASP.NET by Microsoft
    See the previous paragraphs to learn more about the main application. ASA files are often referred to as ASP.NET web (source)s because this type of file is primarily created or used by this software.
  2. Visual InterDev (startup/termination script) by Microosft
    Visual InterDev is a discontinued component of an older version of Visual Studio integrated development environment. It used an ASA file to manage application and session startup/termination. This file format is classified as Web (source). Related links: Web Site File Types, Active Server Pages
  3. Visual Studio (startup/termination script) by Microsoft
    Visual Studio is an integrated development environment for building cross-platform applications. It can create and edit the Global.asa script containing ASP.NET application startup and termination methods. This file format is classified as Web (source). Related links: Web Site File Types, Active Server Pages
  4. Visual Studio (startup/termination script) by Microsoft
    Visual Studio is an integrated development environment with editing, source control, and compilation tools. It can create and edit the Global.asax script of an ASP.NET application. This file format is classified as Web (source). Related links: Web Site File Types, Global.asax Syntax

Technical Data for ASA File Extension

File classification:
Web (source)
Related files:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: asafile, FileType: Active Server Application, AppName: Development Environment

ProgramID: aspfile, AppName: 1stpage
EXEFile: 1stpage.exe

ProgramID: aspfile, AppName: AceHTML 5 Freeware Executable
EXEFile: acehtml.exe

ProgramID: aspfile, FileType: Active Server Document, AppName: Creative Self-Extracting Program
EXEFile: DriverEx.exe

ProgramID: aspfile, FileType: Active Server Document, AppName: Dreamweaver MX
EXEFile: Dreamweaver.exe

ProgramID: aspfile, FileType: Active Server Document, AppName: Microsoft FrontPage
EXEFile: FRONTPG.EXE

ProgramID: aspfile, FileType: Active Server Document, AppName: Microsoft FrontPage Editor

ProgramID: aspfile, FileType: Active Server Document, AppName: Microsoft Office FrontPage

ProgramID: aspfile, FileType: Active Server Page, AppName: Development Environment

ProgramID: aspfile, FileType: Active Server Page, AppName: Dreamweaver MX
EXEFile: Dreamweaver.exe

ProgramID: aspfile, FileType: Active Server Pages File, AppName: Adobe GoLive Application

ProgramID: msstylesfile, FileType: Windows Visual Style File, AppName: Windows Shell Common Dll
EXEFile: shell32.dll

ProgramID: asafile
EXEFile: %ProgramFiles%\Microsoft Visual Studio\Common\IDE\IDE98\devenv.exe %1

ProgramID: aspfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX 2004\Dreamweaver.exe %1

ProgramID: aspfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX\Dreamweaver.exe %1

ProgramID: aspfile
EXEFile: %ProgramFiles%\internet explorer\IEXPLORE.EXE %1

ProgramID: aspfile
EXEFile: %ProgramFiles%\macromedia\dreamweaver mx 2004\dreamweaver.exe %1 does not exist.

ProgramID: aspfile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /prefetch:6 /Open %L

ProgramID: Active Server Page (asa)
EXEFile: %ProgramFiles%\HyperCoder Pro\HyperCoder Pro.exe %1

ProgramID: msstylesfile
EXEFile: %SystemRoot%\system32\rundll32.exe %SystemRoot%\system32\shell32.dll,Control_RunDLL %SystemRoot%\system32\desk.cpl desk,@Appearance /Action:OpenMSTheme /file:%1

ProgramID: aspfile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe

ProgramID: aspfile
EXEFile: %SystemRoot%\NOTEPAD.EXE

ProgramID: ASPExpress
EXEFile: %ProgramFiles%\ASP Express\ASPExpress.exe


an asa startup/termination script is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with ASA files

  • Associate the ASA file extension with the correct application.
  • Update your software that should actually open startup/termination scripts. Because only the current version supports the latest ASA file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available ASP.NET update.
  • To make sure that your ASA file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .ASA file online - secure, fast, and no downloads needed.
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