Fixed bug in REMSRV.EXE where I/O handling was carried out BEFORE acknowledging the serial interrupt. On some systems, calling INT 21h from a serial interrupt while not acknowledging prevents lower priority interrupts (such as floppy or hard drive) from working and might prevent a successful I/O operation.
REMSRV.EXE updated to produce builds that run on NEC PC-98 hardware. Only COM1 (the 8251 UART) is supported. So now REMSRV.EXE has one build for IBM PC hardware and one build for NEC PC-98 hardware.