39-60
Figure 2.14
2. Installing Using DPInst
In the case of a Microsoft WHQL certified driver package, it is possible to preinstall the
driver package using the Microsoft Driver Install Frameworks (DIFx) tools. The simplest
tool provided is the Driver Package Installer (DPInst). When placed in the same directory
as the INF files for the driver package, simply run DPInst.exe and the certified driver
package will be installed on the machine.
The current driver package supports 32bit and 64bit systems through common INF files.
DPInst has separate executables for 32bit and 64bit installation. This means that if a
single solution is desired for 32bit and 64bit systems, the developer must be able to
detect which version of DPInst is required for the system the driver is being installed on.
For more information on DPInst, see the FTDI Windows Driver Installation application
note.
3. Installing From Windows Update
If a certified driver is available for the target operating system, it is possible to install
the driver from the Windows Update web site.
Directions to install the driver from Windows Update are very similar to those outlined in
2.1 Installing Via The New Hardware Wizard, except that the “Yes, this time only” or
“Yes, now and every time I connect a device” option should be selected on the first
screen of the wizard when asked if Windows Update should be checked for a driver. If
the wizard finds a matching driver on Windows Update, the driver will be automatically
downloaded and installed for the device.
