I need some help in fixing this on W10 / 64 bits system either compiled with #AutoIt3Wrapper_UseX64=Y or #AutoIt3Wrapper_UseX64=N @Larsj : Did you ever migrate this to W10 /64 bits system. Post #154 I tried in different ways on $tagVARIANT lengths but application stops. I did partly get it running for spied object when useX64=N but then quickly after that fails on child objects when using iAccessible