README.TXT Driver File Contents (

How to install windows NT4.0 device driver 

1. Login NT 4.0 as Administrator
2. run "A:\nt4.0\nt4inst.bat" at NT DOS command prompt 
3. shut down your PC
4. insert the CD-ROM PC-CARD into the socket
5. turn on you PC 

1. If your NT4.0 is service pack 1 then your internal CD-ROM drive 
   will be disable by NT system. So your must update your NT 4.0 
   to service pack 3.
2. NT 4.0 do not support plug and play. You must insert the PC-CARD
   before boot up your system.

3. IRQ resource
3.1 for toshiba
a. Under Windows NT4.0 PC Card resource assignment and plug and play can be
problematic.  Hot swapping or Hot inserting and extracting PC Cards will not
function in Windows NT 4.0.  So first make sure the card is inserted when
the Notebook powers on and loads Windows NT 4.0.

b.  If after the driver is installed and the system restarted with the PC
Card inserted, and the drive is still not seen verify the resources getting
assigned to the card.

c. Now for  some Toshiba systems there is a tool on their web site at:

Enter in the model number you are looking for in the Portables box (i.e.
7010),  click on GO.  Locate the PCMCIA Windows NT utility to download; i.e.
for the Tecra 8000 or Portege 7000/7010/7020 it is the T8KSYSNT.EXE file.

If the IRQ listed is not IRQ9 and you are using a Toshiba Portege 3010/3015
notebook, there is a conflict with their custom Windows NT IDE driver.  The
symptom in this environment is that the Card and CD-ROM drive will function
only when the CD-ROM PC Card is inserted in Slot 0 (right side) and the
bundled modem card is inserted in slot 1 (left side)

4 IRQ masker for NT

a.  Go to registry by "Start", "Run", "regedt32".

b.  Find the "HKey_LocalMachine\System\CurrentControlSet\Services\Pcmcia"
folder.  Use mouse to click on the "Pcmcia" folder.

c.  User can add the "InterruptMask" key value by double click on the
int.reg file which is attached with thw mail.

d.  The "InterruptMask" is a value belong to "Pcmica" key.  It's double word
value with 16-bit value each bit representing the particular IRQ should be
masked or not for PCMCIA card to use. The function is provided to allow user
masking out  certain IRQ that is used by system like built-in FAX/MODEM
function that NT 4.0 is not aware of.   Each bit has
two value:

    1 - disable, 0 - enable.
    Manufacurer already set to "0x5A01", a hex value as default.

           0   1   0   1     1   0  1  0   0  0  0  0   0  0  0  1
          --- --- --- ---   --- --- -- --  -- -- -- --  -- -- -- --
    b15 b14 b13 b12   b11 b10 b9 b8  b7 b6 b5 b4  b3 b2 b1 b0

    The IRQ's 14, 12, 11, 1, 0 are used by the system and are not available
for PCMCIA cards.

e.  To change the InterruptMask value:
 User can find the IRQ is using by PC card from "control panel\pc
card\PCMCIA CD-ROM\Properties\.
 Click on the "Pcmcia" folder.  Double-click on the "InterruptMask" and
change the value to a new value to exclude the IRQ might be used by system
Download Driver Pack

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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