LabVIEW crashing when running NI-DSP VI on Windows XP

[EborLance]

I am in the process of upgrading a software application from LabVIEW 3.1 on Windows 3.11 to LabVIEW 7.0 on Windows XP with NI-DAQ 7.2. The hardware has been replaced, the relevant hardware change here is from the AT-DSP2200 to the NI-4551.

The source code uses the NI-DSP libraries to control the DSP2200. I can't find any equivalent in the new LabVIEW (and have assumed that there is none, this is all covered in the MAXX now). The source code has been convereted to LabVIEW 7.

When the source code is opened on the Windows XP machine LabVIEW crashes. I've traced to cause of this crash to the NI-DSP code. Whenever I try to open any VI that contains the DSP code it crashes LabVIEW. I think the problem is the CNI call
inside the DSP library. When I try opening the source code on a computer that doesn't have the NI-4551 installed there are no problems.

What is the upgrade from NI-DSP to? Is there a direct mapping of NI-DSP functions to equivalent NI-DAQ ones? How is it that having the hardware plugged in causes a crash even though it shouldn't be accesssed until I run the VI?

Any help would be appreciated.
Thanks.

[C. Flip]

Hello EborLance,

The NI-4551 can use either NI-DAQ or NI-DSA as the driver. If you only have NI-DAQ installed, any program that uses the NI-DSA functions may be crashing.

There is no direct mapping of NI-DAQ functions to NI-DSA functions but you can download and install the NI-DSA driver from the website.

Once you have installed the NI-DSA driver, you should see the functionality you were previously used to and your program should run.

Thanks,
C. Flip
National Instruments