Having some issues with my site concerning non-existing URLs:

• If you goto any non-existing URL that ends in asp it resolves to the custom 404 page set in IIS7
• If you goto any non-existing URL that ends in aspx it resolves to a server error page that dispalys:

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Server Error in '/' Application.

The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable.  Please review the following URL and make sure that it is spelled correctly.

Requested URL: /dont.aspx

Version Information: Microsoft .NET Framework Version:2.0.50727.3074; ASP.NET Version:2.0.50727.4049
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Also... if I goto any URL of my site - which will look like something similar to this:

https://www.domain.com/Locations/tabid/2799/Default.aspx

If I were to remove the tabid value (in this case 2799) the URL will look like this:

https://www.domain.com/Locations/tabid/Default.aspx

this URL redirects me to some other page on our server completely unrelated... I have no idea why... How can I make it so that all non-existent URLs follow the custom 404 page set in IIS7?

I should have been more specific...

The 'Requested URL: /dont.aspx' error message came from the fact I put in the address bar: http://www.domain.com/dont.aspx

The URL I have in IIS7 for the 404 error page is:

/FooterMenu/PageNotFound404Error/tabid/3977/Default.aspx

This works fine for anything that does not end in ASPX... for instance if I went to http://www.domain.com/dont.asp it would goto the correct 404 error page...

Concerning the other redirect issues I do not believe I am using any other 3rd party utilities... I am not sure why the IIS7 custom 404 page does not work on all items that are not found on the site otherwise...

Jeff, Thank you for this information - I looked at the Infinity URLMaster and believe it might be exactly what I need for these issues. Thank you very much for the suggestion - however if it does not work for some reason I will let you knwo and I might want to look at your solution. I have also bookmarked your site (www.vivoware.com) for possible future use. I am trying to get more into the social media aspect with DNN. Again... Thank you for your sugegstion. Hope all is well.