https://bugs.winehq.org/show_bug.cgi?id=49802 --- Comment #2 from Reinhold <reinhold.hoffmann(a)hotmail.com> --- Thanks for the immediate response. It is very helpful. With the discussion on stackoverflow (https://stackoverflow.com/questions/53244454/how-did-wine64-manage-to-handle...) the issue is now clearly understood. Our task now is to find a workaround either - use CreateThread instead of AfxBeginThread because our apps use AfxBeginThread just in few cases, or - stay longer with VS2010 In the future this issue may become a major obstacle because more developments - migrate their apps to x64 - use of latest Visual Studio versions - use Wine primarily for macOS because of the greater prevalence of Mac PCs compared to Linux PCs I hope that the report here helps others, too. Thanks again. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.