MATLAB: Is the Data Acquisition Toolbox using the AdaptorDLL from a different release of MATLAB

Data Acquisition Toolboxincorrectinstallpreviousr13releaseversion

When I run the DAQHWINFO command from the Data Acquisition Toolbox in MATLAB, the information returned indicates that a previous adaptor version is being used. For example when I run the following command in MATLAB 7.0.4 (R14SP2),
daqhwinfo
I receive the following output
 adaptorInfo = 
            AdaptorDllName: 'C:\MATLAB6p5\toolbox\daq\daq\private\mwnidaq.dll'
         AdaptorDllVersion: 'Version 2.2    (R13) 28-Jun-2002'
               AdaptorName: 'nidaq'
                BoardNames: {'PCI-6110E'}
         InstalledBoardIds: {'1'}
     ObjectConstructorName: {1x3 cell}

Best Answer

The AdaptorDLL version that is returned by the DAQHWINFO command is the version of the adaptor that is registered. If you have an adaptor from a certain release of MATLAB registered, then when you run the DAQHWINFO command in a different release of MATLAB, it will still return the version of the adaptor that is registered. In order to use the adaptor version from a release that you desire, you can register it using the following steps:
1. Execute the following code to unregister the adaptor that is currently registered.
daqregister('nidaq','unload');
2. Restart MATLAB.
3. Execute the following code to register the adaptor from the release of MATLAB that you are running.
daqregister('nidaq');
After registering the adaptor from the correct release, you may verify this by running DAQHWINFO.
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