class cannot be found!

Hi everyone,

I am using .net to run multiple instances of an application inside parfor. After defining application path and dll and adding dll to the assembly as:

ProgramPath = 'C:\...\application.exe';

APIDLLPath = 'C:\...\application.dll';

a = NET.addAssembly(APIDLLPath);

I have this parfor loop:

parfor l=1:4

    helper{l} = application.Helper;
end

It works well in "for" loop, but does not run in "parfor". First problem was due to employing "structure" inside parfor. However, even if I assign "application.Helper" to a temp variable outside the parfor and call that variable inside the parfor, I get error as:

"Cannot load an object of class 'Helper':Its class cannot be found."

I appreciate if anybody can help.