On Saturday, 4 May 2019 at 22:29:26 UTC, Aldo wrote: > i'm trying to run 3 threads with the following code : > > https://run.dlang.io/is/p4ThlD Works for me... Windows 10 Pro DMD 2.085.1 (-de -w -m64 switches) Note: I didn't use dub, so perhaps there's something going on there.