Dot in directory name (IIS)

I have a directory name that contains dot (ex: http://localhost/test3.5). Just recently, I was not able to open that page from the browser.

How to fix it?
Firstly, I have to open UrlScan.ini file. In my computer, it's located in the C:\WINDOWS\system32\inetsrv\urlscan folder.

Then, I have to change this value from 0 to 1:
AllowDotInPath=1

I don't need to restart the IIS. Just refresh the browser..and it works!

Source: http://forums.iis.net/t/1150130.aspx