A Win-Test mailing list does exist for mutual assistance between Win-Test users. It is a public list.
Subscribing to the Mailing list
You can easily subscribe to this list by sending a mail to firstname.lastname@example.org while indicating "subscribe" (without the quotation marks) in the subject.
You must be a subscriber to this list before sending a post. If not, your message will be rejected. Nevertheless, you can freely browse the archives (see below) without subscribing.
To post to the mailing list you must use 
Unsubscribing to the Mailing list
You can easily unsubscribe from this list by sending a mail to email@example.com while indicating "unsubscribe" (without the quotation marks) in the subject.
Searching and Browsing the Archive
Before sending a post, we advise you to have a look in the public archives of the list in order to see whether your problem has already been mentioned, and possibly solved, by other users.
You can also search this archive, as it is indexed by Google. For example, to search for QTCs you'd use the following keywords in Google's search box: