.ASA file extension

This is the basic program to work with .ASA extension

Microsoft Visual InterDev

Microsoft Visual InterDevActive Server Application

The program works with the following extensions: css, sln, vap, vip, asa, cdx and dbp

.ASA extension is also supported by the following programs:

Microsoft English Query

Microsoft English QueryActive Server Application

DEVELOPMENT (Application Proxy)

DEVELOPMENT (Application Proxy)Active Server Application

Microsoft Visual J++

Microsoft Visual J++Active Server Application

Microsoft Visual J++ is a package that allows you to build applications.
Microsoft Visual Studio Enterprise Edition

Microsoft Visual Studio Enterprise EditionActive Server Application

An application development kit with several handy utilities uncluded.
Adobe Dreamweaver

Adobe DreamweaverActive Server Page

A combination of professional features to help you create and maintain websites.