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Installing VCP Drivers
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To install D2XX drivers for an FT2232C device under Windows 98, follow the instructions below:

·If a device of the same type has been installed on your machine before and the drivers that are about to be installed are different from those installed already, the original drivers need to be uninstalled. Please refer to the Uninstalling FT2232C Devices section of this document for further details of this procedure.  

·Download the latest available FTCD2XX drivers from the FTDI website and unzip them to a location on your PC. Please note that attempting to install the FTC combined D2XX and VCP driver will result in an unsuccessful installation if the device EEPROM is configured for D2XX drivers.  

·Connect the device to a spare USB port on your PC. As the FT2232C is a composite device, the Microsoft composite device driver must be loaded first. This is not done automatically under Windows 98. The Windows Add New Hardware Wizard will detect the new USB device as a composite device and will guide the user through the installation. Click "Next" on the screen below to continue with the installation.  

   2232c win 98 d2xx composite 1


·Select "Search for the best driver for your device. (Recommended)." as shown below and then click "Next".  

   2232c win 98 d2xx composite 2


·Check the box next to "Specify a location" and uncheck all others as shown below. Normally, Windows will find the composite driver already available in the system. If the composite driver is not available on the PC, the "Microsoft Windows Update" option may be selected and a composite driver will be downloaded from the Microsoft Windows update website.  

   2232c win 98 d2xx composite 3


·Windows will display a message indicating that a composite driver file has been found. In the case below, Windows has found a newer version of the composite driver already installed. It is safe to install this. Continue by clicking "Next".  

   2232c win 98 d2xx composite 4


·To install the composite driver click "Next".  

   2232c win 98 d2xx composite 5


·Windows should then display a message indicating that the composite driver installation was successful. Click "Finish" to complete the composite driver installation.  

   2232c win 98 d2xx composite 6


·Once the composite driver is installed, the Add New Hardware Wizard will then detect a port of the FT2232C device. Windows may display a message reading "Building driver database" at this point which may take a few minutes to pass. Click "Next" when the screen below is shown.  

   2232c win 98 d2xx fnhw 1


·Select "Search for the best driver for your device. (Recommended)." as shown below and then click "Next".  

   2232c win 98 d2xx fnhw 2


·Check the box next to "Specify a location" and uncheck all others as shown below. Click "Browse" and locate the driver files. Once the files have been located, click "Next" to proceed with the installation.  

   2232c win 98 d2xx fnhw 3


·Windows may display a message reading "Building driver database" at this point which may take a few minutes to pass. Once Windows has found the required files, click "Next" to install the device.  

   2232c win 98 vcp ftcusb 4


·If the driver being installed does not have Microsoft WHQL signature files (.CAT files), the wizard will request a driver disk to attempt to find them. Click "OK" on the "Insert Disk" message box.  

   2232c win 98 vcp ftcusb cat disk reqest


The following window will appear to assist in locating the file. To proceed with the installation without the .CAT file, click "Skip File".  

   
2232c win 98 vcp ftcusb cat disk reqest 2

If the driver being installed is Microsoft WHQL certified, then the .CAT files will be located with the other driver files and should be installed automatically.  


·Windows should then display a message indicating that the installation of the serial converter driver was successful. The COM port emulation driver must now be installed. Click "Finish" to complete the installation of the serial converter driver for the first port of the FT2232C device.  

   2232c win 98 d2xx fnhw 5


·As the FT2232C device has two ports available, the serial converter driver must also be installed for the second port. This occurs automatically in Windows 98 with the exception of the .cat file warnings. As above, click "OK" on the "Insert Disk" message box.  

   2232c win 98 vcp ftcusb cat disk reqest


To continue with the installation, click "Skip File".  

   2232c win 98 vcp ftcusb cat disk reqest 2


This will complete the installation of the serial converter driver for the second port of the FT2232C device.  

·Once the serial converter drivers are installed, the Add New Hardware Wizard will detect the USB serial ports and will automatically find the drivers for these in the same location as the serial converter drivers. As before, the wizard will prompt for the .cat files if they cannot be found. Click "OK" on the "Insert Disk" dialog box to proceed.  

   2232c win 98 vcp ftcusb cat disk reqest


Click "Skip File" to continue with the installation.  

   2232c win 98 vcp ftcser cat request 1


This will complete the installation of the COM port emulation driver for the first port of the FT2232C device.  

·As with the serial converter driver above, the wizard will detect the second port and install the COM port emulation driver automatically. Click "OK" on the "Insert Disk" dialog box to proceed.  

   2232c win 98 vcp ftcusb cat disk reqest


Click "Skip File" to continue with the installation.  

   2232c win 98 vcp ftcser cat request 1


·This will complete the installation of the FT2232C device. The device is now ready to use.  

·Open the Device Manager (located in "Control Panel\System" then select the ""Device Manger" tab) and select "View devices by connection". The device appears as 2 additional COM ports with the labels "USB Serial Port". Please note that there is no co-installer available for Windows 98 so port B of the FT2232C may have a lower COM port number assigned than that assigned to port A as in the screen shot below.  

   2232c win 98 vcp device manager