Mark, There were a number of IBM branded development tools at that time. There were at least two versions of MASM, C, and FORTRAN not to mention the BASIC compiler. As for contemporary to DOS 3.3 I am not a 100% but they would have been current if not just the last release. Ali -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf Of cctalk-request at classiccmp.org Sent: Wednesday, August 27, 2014 9:00 AM To: cctalk at classiccmp.org Subject: cctalk Digest, Vol 132, Issue 56 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..."