Microsoft KB Archive/48770

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Mac DOS: IRMA Board Not Supported by Mail 1.37, 2.00, 3.00

Article ID: 48770

Article Last Modified on 10/30/2006


  • Microsoft Mail for AppleTalk Networks 1.37
  • Microsoft Mail for AppleTalk Networks 2.0
  • Microsoft Mail for Appletalk Networks 3.0

This article was previously published under Q48770


The IRMA board is not supported by Microsoft Mail (PC Client). Microsoft did not test the Mail PC Client with the IRMA board, IBM PC 3270, or any other computer that uses a 3270 emulation board.

Microsoft does not guarantee the Mail PC Client's performance under this type of operating environment.


The IRMA board, along with its driver software, provides an interface between a PC and an IBM 3270 mainframe computer. Through "windows," the PC can run 3270-based applications (such as a 3270 workstation) and a PC-based application at the same time. A "hotkey" sequence allows the user to switch between the two different applications. The IBM PC 3270 is a PC/AT that has built-in 3270 workstation capabilities.

The Mail PC Client uses the Character Oriented Window (COW) interface, which can experience severe compatibility problems with a PC that operates as a 3270 workstation.

Additional query words: 1.37 2.00 3.00 Attachmate LocalTalk

Keywords: KB48770