[NET] Ten essential tools for. NET programmers-ASP. NET Version Switcher

ASP. NET Version Switcher

ASP. NET Version Switcher, which can be used to convert the Version of ASP. NET (the virtual directory runs under it.

When IIS processes a request, it will view the extension of the file being requested, and then delegate the request to the ISAPI extension or process the request based on the extension ing of the Web site or virtual directory. This is exactly how ASP. NET works. It registers extension mappings for all ASP. NET extensions and directs these extension mappings to aspnet_isapi.dll. This method works perfectly unless you have installed ASP. NET 1.1-it will update the extension ing to the new version of aspnet_isapi.dll. This can cause errors when an application generated on ASP. NET 1.0 tries to run on version 1.1. To solve this problem, you can reconvert all extension mappings to aspnet_isapi.dll of version 1.0. However, it is boring to manually complete this task because of 18 extension mappings. This is exactly when ASP. NET Version Switcher can play a role. Using this small utility, you can convert the version of the. NET Framework used by any single ASP. NET application.

The figure above shows the actually running ASP. NET Version Switcher. It is easy to use. You only need to select the corresponding application, and then select the. NET Framework version you want the application to use. The tool will then use the aspnet_regiis.exe command line tool to convert the application to the framework of the selected version. With the release of ASP. NET and. NET frameworks in future versions, this tool will become more useful.

ASP. NET Version Switcher is written by Denis Bauer and can be downloaded from the http://www.denisbauer.com/NETTools/ASPNETVersionSwitcher.aspx.