Jonathan

I tried this and had no success. It seems that (at least in 2011 versions), that when registering the file using regasm.exe, it is necessary to use the /codebase option. For example using the Windows command prompt (run as administrator) from the directory that the file is located):

c:\...\...\>c:\windows\microsoft.net\framework\v4.0.30319\regasm.exe VB_Dll_Demo.dll /codebase

Under the 64 bit version of Matlab, do the same thing except use framework64 instead of framework:

c:\...\...>c:\windows\microsoft.net\framework64\v4.0.30319\regasm.exe VB_Dll_Demo.dll /codebase

I used .net framework 4.0 and compiled as "anycpu", selecting "register for COM interop". It warned that the name wasn't strong when I ran regasm so the .dll should be signed to avoid problems.