Starting a new Slicer instance from the menu - fix of Windows build
Starting a new Slicer instance from the menu - fix of Windows build

prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r