Why do I recieve a runtime error when using a COM object built with MATLAB Builder for COM 1.1.2 (R14SP1)?

When instantiating a COM Object built with MATLAB Builder for COM 1.1.2 (R14SP1) in a Visual Basic .NET application, I receive the following runtime error:

 System.Runtime.InteropServices.SEHException

When instantiating the same object in a Visual Basic 6.0 application, I receive the following runtime error:

 The application has requested the Runtime to terminate in an unusual way.

Answer 1

[MathWorks Support Team]

These runtime errors may occur when files extracted from the CTF archive are older than the latest build of the project.

The first time your program instantiates a COM object built using MATLAB Builder for COM, the COM object causes the .ctf file created by the Builder to expand. The CTF-file expands into a folder called appname_mcr, where appname is the name of your application. Subsequent instantiations of the COM object will use the files in the appname_mcr folder instead of re-extracting the archive.

If you need to recompile your COM object, it is good practice to delete the appname_mcr folder, so that the newer files will be extracted.