https://bugs.winehq.org/show_bug.cgi?id=46466 --- Comment #6 from Reinhold <reinhold.hoffmann(a)hotmail.com> --- Created attachment 63289 --> https://bugs.winehq.org/attachment.cgi?id=63289 Demo with CoCreateInstance and explicitely specified architecture I tried ===================================================================================== IServerWrapperPtr ptr = NULL; HRESULT hr = CoCreateInstance(__uuidof(ServerWrapper), NULL, CLSCTX_LOCAL_SERVER | CLSCTX_ACTIVATE_32_BIT_SERVER, __uuidof(IServerWrapperPtr), reinterpret_cast<void**>(&ptr)); ===================================================================================== (please find attacted "ClientModified_001.cpp" and the accordingly built "ClientModified_x64_001.exe") where I explicitely specified architecture. This works fine on Windows but on Wine the result is still REGDB_E_CLASSNOTREG = 0x80040154L Or do I do something wrong here (additional flags required)? Please let me know if there is a way in the current Wine-4.0 where it may work or confirm the bug report. If there is anything more that I can provide, please let me know. Again, many thx for immediately providing comments. -- 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.