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5 – Windows NT Driver Installation
QLDIRECT
5-4 FC2354601-00 A
5.4.1
QLDIRECT Driver Files
Qldirect.sys requires the Ql2300.sys enhanced miniport driver version 7.00.00 or
above. The latest version of the QLDIRECT driver and Ql2300.sys enhanced
miniport driver for Windows NT are available on the QLogic Web site.
5.4.2
QLDIRECT Installation
If QLDIRECT is not installed on your system, perform the installation procedures in
section 5.4.2.1. If the QLFILTER driver is installed on your system, perform the
update procedures in section 5.4.2.2.
5.4.2.1
Initial Installation of QLDIRECT
Perform the following steps to add the QLDIRECT driver to a previously installed
Windows NT 4.0 system:
1. If necessary, install the QLA2300 Windows NT 4.0 enhanced miniport
driver.
2. Insert the disk that contains the QLDIRECT driver in an appropriate drive.
3. Execute the Setup.exe installation program on the disk and follow the
instructions on the screen.
4. Remove the disk that contains the QLDIRECT driver.
5. Restart your system to load the driver.
5.4.2.2
Updating to QLDIRECT from QLFILTER
The QLDIRECT driver replaces the QLogic QLFILTER driver. You must first uninstall
the QLFILTER driver before installing the QLDIRECT driver.
NOTE: Windows NT does not always remove driver files and registry keys when
uninstalling a driver. You must manually remove the Qlfilter.sys file and
associated registry key to ensure that Windows NT does not load the
Qldirect.sys and Qlfilter.sys drivers.
Perform the following steps to update from the QLFILTER driver to the QLDIRECT
driver:
1. Manually delete the Qlfilter.sys file from the following directory. For example:
del C:\Winnt\System32\Drivers\Qlfilter.sys
2. Manually remove the QLFILTER key from the following registry location:
\HKEY_LOCAL_MACHINE\System\CurrentControlSet
\Services