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LabVIEW Visa-USB Driver Setup Question
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I have been running a DPP with DPPMCA software (WinUSB driver).  
I want to run a DPP with LabVIEW DP5 SDK software.
I cannot get the LabVIEW Visa-USB driver to install.

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LabVIEW Visa-USB Driver Setup Answer
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USB Setup
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- Verify the Amptek FW6 USB Driver is installed.
- Verify Full LabVIEW VISA is installed.
- Plug-in your Amptek device.
- With NI-VISA Driver Wizard locate the Amptek device (VID=10C4,PID=842A) and create a VISA driver entry.
- With NI-Measurement & Automation Explorer, verify your Amptek device VISA USB is visible.
- Refresh the VISA selections (USB RAW VISA resource name) ComboBox in the TestDppSDK_USB.vi panel.
- Select your USB device.
- Run TestDppSDK_USB.vi.
- Verify the DPP Status Cluster is Updating with your USB device information.


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Amptek DPP USB Drivers General Information
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It is possible to install all the USB drivers of all Amptek products and 
run them simultaneously. 
(It is common to have many Amptek devices attached to a system.)

Windows only allows one driver per device type for each USB port. 
Therefore you must have at least one dedicated port for each driver type.

To run the VISA USB driver together with the WinUSB driver:
1. You must have 2 or more USB ports available
2. Install the WinUSB driver on all DPP ports before installing the VISA driver.
        (This makes it easier for the NI Driver Wizard to identify the DPP device.)
3. For each LabVIEW port install the VISA driver. (This becomes a dedicated LabVIEW port.) 
4. The remaining DPP ports are dedicated WinUSB ports. (These ports will work with DppMCA.)


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Amptek DPP USB Drivers Installation Guide
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If you have one DPP and 2 USB ports: USB1 and USB2:
1. Install WinUSB on both ports first.
2. Open the Device Manager and verify the DPP hardware is installed.
        (look under "Amptek DPP" for the device, do this for both USB1 and USB2)
3. Plug you DPP into USB2.
4. Use the VISA Driver Wizard to locate and install VISA drivers on USB2.
        (Do this for this port only.)
5. In the Device Manager and verify the DPP hardware is installed.
        (look under "NI-VISA USB Devices" for the device, do this for USB2)
6. Plug you DPP into USB1.
7. In the Device Manager and verify the DPP hardware is installed.
        (look under "Amptek DPP" for the device, do this for USB1)

You should now be able to switch back and forth between USB ports.
Each port should connect to the DPP device using the assigned driver.

If you have a valid device driver installed for a specific USB port 
and specific device, windows will not change the device driver for that
port unless instructed to do so.  

It is a common practice to run different USB device drivers on USB ports.
Most developers that use LabVIEW USB with DPP devices do this (including myself).


