[MIcrostation 10.15.02.11 french and SDK 10.16.00.80] Unable to load c++ dll

Hello,

I start with the SDK.

I have Visual Studio 2017 and .NET 4.6.2 Framework installed

I have compiled examples and build a sample dll in c# and in c++

Everything builds successfully

- I can load c# "Hello world" sample.dll (created from c# template) in MicroStation

- I can load any .ma examples

- I get error message "MDL Loader: Could not load application" when trying to load c++ sample.dll (created from c++  template)

- I get error message "MDL Loader: Could not load application" when trying to load myapp.dll

Do you know why ?

Many thanks

Remy