A typical net session: a dos batch file: slfp /s 2400 /d atdt764-4800 if errorlevel 1 goto end net -d c:\net termin 0x60 :end a 4dos alias: slfp /s 2400 /d atdt764-4800 ^ iff errorlevel 1 then ^ net -d c:\net ^ termin 0x60 ^ endiff Try running STAT.EXE to get statistics on loaded packet drivers. TERMIN unloads the packet driver from memory, (and resets the COM port). The AUTOEXEC.NET file must be in the directory that the NET command points at, or in the root directory. SLFP packet driver info: param default description ----- ------- ----------- /p 0x60 Packet driver interrupt number /i 4 IRQ for com port. Use 4 for COM1 and 3 for COM2. /b 0x3F8 I/O base address for com port. Use 0x3F8 for COM1 and 0x2F8 for COM2. /s 2400 Line speed bit rate. /d -none- Dial sequence. Use atdt764-4800 for local dial. /t 60 Initial timeout. Amount of time to wait for the dialup and initial handshake with Merit. /h 1 Initial SLFP handshake. This can be turned off with value 0. This allows one to make the initial connection with a terminal emulator like kermit, and enter PCIP at the TERMINAL= prompt. This is useful if you have problems with the SCP training up into SLFP protocol mode. /f 1 Initial FIFO check value. If set to one, slfp checks for a 16550a UART for the COM port. This allows the high performence FIFO on chip to be used. If set to zero, slfp assumes a normal 8250 chip set. /q 0 Quit parameter. If set to one, a soft hangup is performed when the terminate function is called. This only works with hayes-compatable modems, as this sends "+++" and "ATH0". If set to zero, a hardware hangup is performed by dropping DTR. NET program command line: net [-d directory] [-s #sockets] [-b] [startupfile] -d The root directory for NET files. This defaults to the root directory of the logged in drive. This is where autoexec.net, domain.txt, and the ftp and spool directories are rooted. -s Number of sockets. Defaults to 40. You might need to increase this if you're running a bunch of sessions. -b Use the BIOS for all writes to video. none The startup file. Defaults to autoexec.net. Found in the net directory root if a relative file name, but you may specify an absolute path.