usb device not visible in MAX

[SaltyWahoo]

I am trying to write LabView code for a Horiba spectrometer (iHR550) which is connected to my Windows XP machine via USB.  Both Windows device manager and the commercial software for the spectrometer sees the spectrometer, however, the Measurement and Automation Explorer does not.  I have read some forums which said to change the driver the to ausbtmc.sys.  I am unable to change the driver following these instructions.

[Makoto]

To make the device show on the NI-MAX, the device must be recognized by NI-MAX and NI-VISA. There are 2 types of USB devices supported by NI-MAX and NI-VISA.

1)USBTMC device

This is an industrial standard USB device class for T&M devices, which can be hosted by IVI Foundation's "ausbtmc.sys" kernel mode driver. Driver is what comes with VISA installer. In this case the device must be shown as "Test and Measurement instruments (IVI)" on the Device Manager. This kind of devices are always recognized by NI-MAX simply.

2)Vendor-specific device, with NI-VISA USB RAW support

This is vendor-specific or custom device that is not compliant with USBTMC. Basically this kind of devices shall be hosted by its own specific device driver, but when such driver is not provided or difficult to develop, you can assign the device to NI-VISA's USB RAW, which can be recognized by NI-MAX. Basically you need generate a custom .INF file that will install the device driver for the device with specifying device VID and PID values, by using NI's VISA Driver Development Wizard tool. See the link below; 

http://digital.ni.com/public.nsf/allkb/E3A2C4FE42D7ED0D86256DB7005C65C9

Makoto