MS-DOS Applications in Windows with Proteon Network Cards

• Microsoft Windows operating system versions 3.0, 3.0a, 3.1, 3.11
• Microsoft Windows for Workgroups version 3.1, 3.11

SYMPTOMS

When using the Proteon P-1392 or P-1390 ProNET network cards with Microsoft Windows or Windows for Workgroups, MS-DOS-based applications loaded from a network drive may cause the machine to stop responding (hang).

CAUSE

Proteon technical support has confirmed that MS-DOS-based applications may not run properly in an MS-DOS window when you use the P-1392 or P-1390 ProNET Proteon network cards with Windows 3.0, 3.0a, or 3.1.

The symptoms occur when the Proteon card is set for bus mastering for a workstation that is not capable of bus mastering. In this case, the Proteon card becomes the bus master and takes over all I/O transfers.

WORKAROUND

Set the DMA channel from 5 to 0 on the Proteon card, which changes from a bus master to a bus slave.

MORE INFORMATION

For more information, contact Proteon technical support.

The Proteon network cards are manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.