I have deployed an asp.net site with a wcf rest service to a virtual directory. It accepts lat/lon in the querystring. IIS is apparently not allowing querystrings that contain a '.'. I have found numerious posts on the topic, but cannot seem to resolve the issue.

I have tried enabling parent paths on both the parent website and the virtual directory:
<http://support.microsoft.com/kb/332117>

I have already tried the httpRuntime setting for relaxedUrlToFileSystemMapping="true"
<http://haacked.com/archive/2010/04/29/allowing-reserved-filenames-in-URLs.aspx>

currently I have both parent paths enabled and my httpRuntime settings are:

```
<httpRuntime requestValidationMode="2.0" requestPathInvalidCharacters="" relaxedUrlToFileSystemMapping="true" />

```