>Is there a way to make work a PC with only a MS-DOS license installed work on a network. The server has WIN98 on it.
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You need an appropriate real-mode NDIS driver for the network card, and the networking add-ons available from Microsoft for MS Networking, or an appropriate real mode ODI driver and the Novell VLMs or IPX/NETX utilities for NetWare. A pure (pre-Win9x, ir DOS 6.22 or earlier) DOS will not support LFNs, system names with embedded spaces, multiple periods in the name, or long names. IBM PCDOS and DRDOS have their own problems.

Since you have Win98, try installing Win98 and then running that machine in DOS Compatibility Mode (single user DOS - no Windows UI.) The DOS executables can be found on the Win98 boot floppy, with the remaining pieces in the \Windows\COMMAND directory. This will provide the added functionality from the DOS that underlies Win98, without the possibly troublesome protected mode layers that cause a few apps problems. You can set up the system to come up that way by default, and invoke the boot menu by pressing F8 during startup. Having the system boot up by default inMS-DOS COmpatibility mode requires that you modify MSDOS.SYS in the root of the boot drive; it's a hidden, system file, so before editing it, change the file attributes, make you changes carefully, and set the attributes back the way you found them. Do not add extra characters or lines to the file.