MATLAB: Do I receive the error message: “This application has failed to start because OLFG32.dll was not found” when using the Image Acquisition Toolbox

acquisitionfunctionsimageImage Acquisition Toolboximaqmil.dllolfg32.dlltoolbox

After installing the Image Acquisition Toolbox functions, the following error message pops up when I run any of the functions, such as IMAQHWINFO, IMAQSUPPORT or VIDEOINPUT:

 MATLAB Command Window: matlab.exe - Unable To Locate Component
 This application has failed to start because OLFG32.dll was not found.
 Reinstalling the application may fix this problem.

When I click OK another dialog appears:

 MATLAB Command Window: matlab.exe - Unable To Locate Component
 This application has failed to start because MIL.dll was not found.
 Reinstalling the application may fix this problem.

Best Answer

You may work around the problem by renaming or removing the adaptor dlls that you are not using.

For example, if you are using "winvideo", rename the mwmatroximaq.dll and mwdtimaq.dll files in

$MATLAB\toolbox\imaq\imaqadaptors\win32\

to mwmatroximaq.dl_ and mwdtimaq.dl_.

If you are attempting to use a Data Translation's board, and are still experiencing errors associated with the OLFG32.dll, be sure to install the Data Translation SDK. Installing the Data Tanslation drivers only will not install this DLL on your system. This is a known issue with the Data Translation installer.

Related Solutions

MATLAB: Am I unable to deploy an application compiled with MATLAB Compiler 4.5 (R2006b) that uses Data Acquisition Toolbox functionality

An attempt is made to register Data Acquisition Toolbox adaptor DLLs the first time the application is executed. In order for the registration to succeed you need to have administrative privileges. On Windows Vista with UAC enabled, this means you also need to run the application as administrator.

The MATLAB Component Runtime (MCR) does not automatically register the required adaptor DLLs used by Data Acquisition Toolbox during installation.

To work around this issue, you either need to run the application as administrator one time, or perform the following steps on the deployment machine:

1. Execute the application once to expand the CTF archive. This will create a folder called dioTest_mcr for this example.

2. Open the Windows command prompt.

3. Navigate to the dioTest_mcr\toolbox\daq\daq\private directory.

4. Register the mwmcc.dll (or equivalent adaptor DLL required by your hardware) by entering the following command:

 regsvr32 mwmcc.dll

MATLAB: Are there missing dll messages when creating a VIDEOINPUT object with the Image Acquisition Toolbox 1.0 (R13.0.1+)

This is a bug in Image Acquisition Toolbox 1.0 (R13.0.1+) in the way that it handles non-used hardware device libraries.

To work around this issue, try to rename or remove the adaptor dlls that you are not using.

For example, if you are only using the "winvideo" device, rename the mwmatroximaq.dll and mwdtimaq.dll files in