Retrieves the URL of the help directory.
Multiple content servers can share online help files from one Content Server installation. This variable defines the URL path to the DomainDir/ucm/cs/weblayout/help directory of the content server whose help files are being shared.
Returns the relative URL as a string. If the URL is external, the complete URL is returned rather than the relative path.
Returned for a Content Server:
HttpHelpRoot=/domain/help/