Apple has released version 1.5 of the DOS Compatibility software and strongly recommends that all owners of previous version of DOS Compatibility cards (except the Macintosh Centris/Quadra 610 DOS Compatibility Card), upgrade to this version of software.
This software requires an upgrade to Mac OS 7.5.3 with System 7.5 Update 2.0. With the Power Macintosh 6100, Macintosh LC 630, and Macintosh Performa 640 DOS Compatibility cards, Classic networking must be chosen instead of Open Transport.
- If you have a PCI-based computer, you need DOS Compatibility software1.5, System 7.5.3, and use Open Transport 1.1. Version 1.5 of the DOS Compatibility Software ships with the PC Compatibility Cards.
- If you have a Non-PCI-based computer (for example, a Power Macintosh 6100 DOS Compatible, LC 630 DOS Compatible, or Performa 640 DOS Compatible), you need DOS Compatibility software 1.5, System 7.5.3, and use Classic networking by selecting this option in the Network Software Selector found in the Apple Extras folder.
- If you upgrade to Mac OS 7.6 and/or Mac OS 7.6.1, Open Transport must be choosen instead of Classic networking.