4D Listenarchiv von 1995 bis heute... Fragen und Anworten

A joining page for both official and unofficial lists.

French speaking mailing list about 4th Dimension

German speaking mailing list about 4th Dimension

Internet forum for users and developers of ACI's 4th Dimension RDBMS (relational and Web database environment for Macintosh and Windows).

Browse the messages posted on the 4DNUG.

French speaking announcement mailing list about 4th Dimension in Switzerland

Discussion list for developers, resellers, administrators and users in Australia and New Zealand

A 4th Dimension developer forum (low activity)