The following document contains instructions on how to install the IBM DLTVS(DLT1)
tape drive driver for the Windows NT 4.0 Intel platform.

This driver is for the Intel Platform only.

Driver History:

Version 1.7  	Correct TAPE_DRIVE_LOCK_UNLOCK status

Version 1.6  	Calculate capacity and tape remaining properly

Version 1.5 	Modify to pass WHQL tests

Version 1.4 	Added ability to toggle compression in Backup Exec

Version 1.3 	Added support for DLT1 string

Version 1.2 	Added support for multiple ID Strings

Version 1.1 	Added ability to detect BNCHMARK Unique ID String

	        Increased block size to 32 KB

Version 1.0     Initial release of driver.


MAKING AN INSTALLATION DISKETTE:

The executable will extract to build a diskette image containing the following four files.

	        DLTVS_NT.TXT
		OEMSETUP.INF
		Bnchtape.SYS
		DISK1

Note: The default settings for Windows Explorer is to hide files of type ".SYS".
In order to view the driver in the Explorer, select the "View" menu. Select "Options..."
Select the "View" tab. Select "Show all files". It is highly recommended that this setting
be returned to its default setting, "Hide files of these types" when you are finished
installing the driver.

Note: You must have 'administrative' priviledges in order to install drivers.

INSTALLING THE DRIVER: 


	Installing the driver for Benchmark DLT1:

	1.  Shutdown Windows NT 4.0 if it is running and power down the
            system.

	2.  Connect the DLT1 tape drive to the system.  Ensure the
            SCSI bus is terminated correctly and that there are no target
            ID conflicts.  Note: (It is also advisable to have
            tape devices on a bus separate from the OS disk bus)

	3.  Startup the system and log into Windows NT.

	4.  From the "Start" menu, bring up the Windows NT control panel.

	5.  Select the "Tape Drive" icon from the control panel.  The 
            system scans for installed tape devices.  

        5a. Previously Installed Drivers -
            If the Tape Devices dialogue box indicates that an older version
            of DLT driver is installed, you should remove it.
            Click on the  "DRIVERS" tab. 
	    Highlight the older version driver and select "Remove".
            After the driver is removed select "Add".  Continue at step 6.
        
        5b. If the tape drive is displayed with 
            "Driver Not Started", Click on the "DRIVERS" tab.  When the 
            next window is displayed select "Add".

	6.  In the Install Driver dialog box, click on Have Disk.  The 
            Install from disk dialog box is displayed.

	7.  Insert the disk containing the Bnchtape.sys driver into a 3 1/2
            inch floppy drive.  Change the drive letter in the Copy From 
            field to the floppy drive and click OK.  A new Install Driver
            dialog box is displayed.

	8.  Double click on: 

            "BENCHMARK Digital Linear Tape NT4.0 Ver 1.7".

            The New Tape Device Found dialog box may be displayed. 

	9.  If the New SCSI Tape Device Found Dialog is displayed 
            click OK.  The Windows NT Setup dialog box is displayed.

	10. In the Windows NT Setup dialog box, change the source drive 
            letter to the directory or floppy drive containing
            the driver file (Bnchtape.sys).  Click
            Continue.

	11. The Tape Device Dialog box is displayed again.  Click OK.  
            The driver will be installed on the machine. Click New if
            previous version of driver was detected. 

	12. When installation is complete, close the control panel.  You
            must reboot Windows NT.  After rebooting, ensure the driver 
            is installed by checking the Tape Devices in the control panel.

        

Note: The Benchmark DLT1 device functions properly with qntmdlt.sys
or dlttape.sys ver 1.4 and above, as well as Bnchtape.sys

If you have problems, questions or feedback relating to the installation or usage of this 
driver  you can contact IBM technical support at www.pc.ibm.com/support.