Hi, While running your changed tests on Windows, I think I found new failures. Being a bot and all I'm not very good at pattern recognition, so I might be wrong, but could you please double-check? Full results can be found at https://testbot.winehq.org/JobDetails.pl?Key=38636 Your paranoid android. === wvistau64 (64 bit marshal) === marshal.c:1298: Test failed: hwnd = FFFFFFFFDEADBEEF === w2008s64 (64 bit marshal) === marshal.c:1298: Test failed: hwnd = FFFFFFFFDEADBEEF === w7pro64 (64 bit marshal) === marshal.c:1298: Test failed: hwnd = FFFFFFFFDEADBEEF The previous 1 run(s) terminated abnormally === w864 (64 bit marshal) === marshal.c:1298: Test failed: hwnd = FFFFFFFFDEADBEEF === w1064 (64 bit marshal) === marshal.c:1298: Test failed: hwnd = FFFFFFFFDEADBEEF