https://bugs.winehq.org/show_bug.cgi?id=40411
--- Comment #15 from Joerg Schiermeier mywine@schiermeier-it.de --- Bad news.
I used wine v1.0 as good but got serious problems to compile. So I tried a source package from from sourceforge with version 1.8.1: this "Regedit" did the error which is described here.
No correct export. "Regedit" also stopped exporting with the key "[HKEY_LOCAL_MACHINE\Software\Microsoft\Software\Microsoft\Shared Tools]" and than told me something about "success". But zsh also gave me an error return "1".
My old drive wasn't helpfull: I used regedit to export a special key "The Bat!" (an app I maintain).
This is working: wine regedit /E ~/Downloads/tb.reg "HKEY_CURRENT_USER\Software\Wine\FileOpenAssociations.chm"
Result: --- REGEDIT4
[HKEY_CURRENT_USER\Software\Wine\FileOpenAssociations.chm] "AppName"="hh" "DesktopFile"="/home/joerg/.local/share/applications/wine-extension-chm.desktop" "MimeType"="application/vnd.ms-htmlhelp" "OpenWithIcon"="A35F_hh.0" "ProgID"="chm.file" ---
Now I have to fix some problems with older versions as told in: https://wiki.winehq.org/Regression_Testing#Testing_a_broken_compile and https://wiki.winehq.org/Reverse_Regression_Testing
and some other odd things....
^..^<
Seams to me it never worked before or it worked a long time ago ... (Version v0.x).