VS 2010 Web Forms Routing Error 404 With Dot In Folder Name?

I have a site that I setup and users can create dynamic links and part of the link is their company name. Well just found out that if the name of the company has a dot (. or period) then the routing doesn't like that. After searching see that you can't put a dot in the folder name and wonder now that all these urls are out there is there a good way to handle so the user doesn't get the 404 page? Someone said to add relaxedUrlToFileSystemMapping="true" but did this and still throws to 404.

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System info
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Microsoft Windows Server 2003 R2
Standard x64 Editions SP2
site using ASP.NET 4.0.30319 framework
Using web forms.

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Global.asax
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Code:
<%@ Application Language="VB" %>
<%@ Import Namespace="System.Web.Routing" %>
<%@ Import Namespace="System.Security.Principal" %>
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
' Code that runs on application startup
RegisterRoutes(RouteTable.Routes)
End Sub
Sub RegisterRoutes(ByVal routes As RouteCollection)

[code]...

This works:

[URL]

This does not work because of . (dot) in folder name:

--I get 'The page cannot