Softpaq Solution: SP0936 File Name: MDMCOM1.SYS Title: Laptop problems with Windows-based communications programs not able to talk to PCMCIA modem when modem is set to COM1. _______________________________________________________________________ CATEGORY: Driver EFFECTIVE DATE: 09-14-94 PRODUCTS AFFECTED: Contura Aero, LTE Elite, Contura 400 OPERATING SYSTEM: MS-DOS 5.0 or greater SYSTEM CONFIGURATION: PCMCIA slot(s) and PCMCIA modem as COM1 DESCRIPTION: MDMCOM1.SYS (dated 9-14-94) allows Windows-based apps to communicate with a PCMCIA modem that is assigned to COM1. Normally PCMCIA modems are set for COM2 (for some sound technical reasons) but some customers insist that the modem be set for COM1. Setting the PCMCIA modem to COM1 may cause Windows apps to be completely unable to talk to the modem - MDMCOM1.SYS allows normal operation for those apps. HOW TO USE: 1. If SoftPaq obtained on diskette, copy the SoftPaq file to a temporary directory on the hard drive and go to that directory: MD C:\CPQ COPY A:\SP0936.EXE C:\CPQ C: CD \CPQ 2. From that drive and directory, run the SoftPaq utility to unbind the primary files. Type SP0936.EXE (and press ENTER). The following files should be created: MDMCOM1.SYS MDMCOM1.DOC 3. Please read all DOC files before installing this new driver. 4. Copy the MDMCOM1.SYS to the \CPQDOS subdirectory: COPY MDMCOM1.SYS C:\CPQDOS 5. Edit your CONFIG.SYS file and add a line for MDMCOM1.SYS: CD\ EDIT CONFIG.SYS Cursor down and insert a line that says "DEVICE = C:\CPQDOS\MDMCOM1.SYS" just above the one that says "REM *** Begin PCMCIA Drivers ***". Save the file and exit. 6. Change the PCMCIA configuration to place the modem on COM1. CD \CPQDOS PC-CARD Hit Return to clear the initial screen. Then hit ALT-F and E to edit configuration. Hit ALT-M to change modem configuration. Change the field "Slot1: COM2" to "Slot1: COM1" and hit TAB to move to "Slot2: COM2" and change it to "Slot2: COM1". Hit Return twice to get back to main menu. Hit ALT-F and S to save the configuration. Hit ALT-F and X to exit to DOS. Hit CTRL-ALT-DEL to reboot. 7. While rebooting hit F10 to start SETUP so that the system board serial port can be set for COM2. Once in SETUP, click on "Communications" In the box labeled "Serial Interface 1", click on the choice that says "Address 2F8h, IRQ3" Click on OK to close the Communications box. Click on Exit to exit Setup. Exit Diagnostics and let the system reboot, it is now ready to use.