Grasshopper.Folders.CustomAssemblyFolders

Hi Everybody!

I wonder if I forgot something but it looks like the properties

Grasshopper.Folders.CustomAssemblyFolders.Add or Remove is not changing the grasshopper folder property and it seems paths developer folder setting are not affected. 

I am trying to add a custom assembly folders through my installer and I can't get it done. 

Thank's for any advice!

Tristan