Hi again: I finally found out what the problem was. It was oscar actually who did, some months ago [1]. The problem is at least a couple of svg files in the health/icons folder: warning.svg and stop.svg If you look at them you'll see how different their metadata is compared to cancel.svg, for example. That format/metadata makes libpixman library crash in Windows. I made some dirty changes in the warning.svg file to make its metadata look more alike cancel.svg and the problem was gone. Hope it helps. Mario
[1] https://bugs.tryton.org/issue4770