How to use this .NIF file:
1) get the latest driver for your Xircom CE2 card:
https://hobbesarchive.com/Home/Download?path=/Hobbes/pub/new/Xircom_CreditCardIIps_2-04.zip2) unzip the file into a temporary directory
3) change to the "NDIS" subdirectory of that temporary directory and copy/overwrite the CE2OS2.NIF file to that directory
4) run the "Network Adapters and Protocols" tool to install the driver by browsing to the "NDIS" subdirectory
A word of wisdom: The CE2NDIS.OS2 driver seems to support quite a few settings that I now added to the CE2OS2.NIF file so that they can be set and written to PROTOCOL.INI. Amongst those settings there are a couple of boolean settings with "Yes"/"No" keyword values for true/false. I think the Xircom device driver writers took a shortcut for boolean values in that they are only looking for the keyword instead of the proper keyword value. That said, it means that if you want to delete a boolean setting you will actually need to wipe the keyword value to an empty string instead of setting it to "No" so that it will be completely removed from PROTOCOL.INI. Additionally, it might be possible that for boolean settings, the driver will only expect to see the keyword instead of the keyword = value line. It might therefore need some experimentation.
Most importantly, the CE2NDIS.OS2 driver also supports point enabled operation by setting CARDSERVICES and SOCKETSERVICES both to "No". So you can still install PCMCIA card and socket services support and then ignore the slot where you inserted the Xircom card as suggested by Steve.
Another word of warning: per default the driver operates in "memory" mode and not "io" mode where memory means the drivers registers are memory mapped (addressable by a normal memory address instead of an io port). The address range accepted by the driver/the default address (expressed as a real mode segment value) might not be available on your system. If you have odd system behaviour, you might then try other values for the [MEM] keyword. The ArcaOS memory utility (or the QSINIT loader) can help you with the display of reserved memory regions on your system. I can help if that should become relevant/necessary.
Once you find out that the .NIF file works for you, let me know and I will rebundle the driver zip with this updated .NIF file and reupload to Hobbes.