Allowing "-" in Tridion Publication Path

Today we had a requirement where the publication path need to include a "-" for all locales. For example, we will need the publication path of an English site to have "en-US" and not "en_US"

However, by default, Tridion CMS does not allow for this to work. When trying to add a "-" you will get the following error:

Here's the work around:

• Open \Tridion\bin\cm_xml_usr.xsd
• Modify the <xsd:simpleType name="FilePath"> element to include "\-" in the XSD Pattern.
• You will now see the following:

• Restart Tridion COM+

Now you should be able to add a "-" to the Publication Path!