Limitations

The limitations of running Personal Communications/3270 for Windows under OS/2 V2.0 should be noted:

  • If Personal Communications/3270 for Windows is started after OS/2 V2.0 LAN requester is running, it will cause the LAN requester to fail.

  • File transfer can only be performed from the virtual DOS machine in which Personal Communications/3270 for Windows is running.

  • The adapter card used by Personal Communications/3270 for Windows for communication with the host cannot be accessed by another program. Since the 802.2 device driver is not (yet) virtualized, Personal Communications/3270 for Windows has direct access to the Token-Ring card. No other LAN services can be made available via another program using the same card.

    Note: A possible solution for this problem could be to install a second Token-Ring adapter. However, this will not help because the LAN Support Program will try to initialize both Token-Ring adapters, if installed. This can cause trouble for OS/2 device drivers which are using the second adapter at the same time.

  • You need to run the program RESETOKN.EXE before starting this virtual DOS machine and after closing this virtual DOS machine. This will reset the adapter and make it available to another process. If you don't use RESETOKN, the Personal Communications/3270 for Windows virtual DOS machine cannot be stopped and restarted, as the IEEE 802.2 device driver is not (yet) virtualized.

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