Dear Jasper,
As you intend to fix the issues pointed out by Thibault in a new release, let me mention another annoying long-lasting problem with Simile 6.x on Windows platform.
When opening a Simile model by double-clicking on the sml file (saved from the Standard or the Enterprise version together with a shf file), it is necessary to choose File-Open and then Cancel to open the simulation interface window, which is not opened automatically as expected (or when launching Simile first and then opening the model).
Could you please also fix this bug?