.aspx not working

[jobu Profile]

We are using Helicon Rewrite 3.1.0.98 on IIS 7.5 and Windows 2008R2 with ASP-ASP.NET mixed application.

PROBLEM
We are unable to setup redirects with the extention of .aspx or create vanity URLs. We can setup redirects with.html, .htm, .php, .asp, .pdf, and .jpg. For example,

http://www.domain.com/future2 or http://domain/product.aspx do not work.

BACKGROUND
The content management system we are using is Sitecore and we have a Redirect Manager Module installed. The module has 500+ redirects setup that all end in .aspx. We also have 50 vanity urls like http://domain.com/name. As a test, we deleted all the redirects from the module database but the problem still occurred.

Code samples being used:
# Helicon ISAPI_Rewrite configuration file
# Version 3.1.0.98

RewriteEngine On
RewriteCompatibility2 On
RepeatLimit 200
RewriteBase

#EN
RewriteRule ^/test.aspx$ /about/test.aspx [L,NC,R=301]
RewriteRule ^/test2/$ http://www.test.com/en/test.aspx [L,NC,R=301]

QUESTIONS:
Could the redirect module in Sitecore (because it's still installed) be interfering with ISAPI?
Could there be a setting that needs to be inserted to make .aspx and vanity URLs available?
Shouldn't ISAPI override the Sitecore module?
Is there additional command to use?

[HeliconAndrew]

Hello,

Let's not make any accusations towards Sitecore.
Please, provide rewrite.log for the testing request. Logging issues are described in FAQ - http://www.helicontech.com/forum/10648-FAQ.html

Regards
Andrew