An HTTP 404 Error Involving a URL that points to "eurl.axd" May Occur When Running Web Access 8 or WebLink 8 on an IIS 6 Computer With .NET Framework 4.

September 13, 2010 | KB: 1012670

https://support.laserfiche.com/kb/1012670/an-http-404-error-involving-a-url-that-points-to-eurl-axd-may-occur-when-running-web-access-8-or-weblink-8-on-an-iis-6-computer-with-net-framework-4-

Web Access 8, WebLink 8

After installing .NET Framework 4 on a Web server running Windows Server 2003, attempting to access Web Access 8 or WebLink 8 may display an HTTP 404 error that references a URL containing "eurl.axd."

Configuring the Default Web Site to use ASP.NET 4 may potentially break existing ASP.NET 2.0 web applications running under Default Web Site.

Please see the "ASP.NET 2.0 Applications Might Generate HttpException Errors that Reference eurl.axd" section of the following Microsoft whitepaper on potential ASP.NET 4 breaking changes:

http://www.asp.net/learn/whitepapers/aspnet4/breaking-changes#0.1__Toc256770153