Yep its the 64bit ShellToys and I just checked, again, to make sure I have the latest version of everything
ShellToy's context menu customisation feature works with MIcrosoft's Windows Explorer, zabkat's xPlorer2 and with XYPlorer. So in my opinion the problem is with Opus rather than ShellToys, unless of course Windows Explorer and xPlorer2 and XYplorer are also wrongly implemented
I looked at Tip: Organise and Speed-Up Context Menus,
I'm not enamoured with the idea of having to implement something with a long complex set of definitions involving locating & cutting GUIDs in the registry and pasting them into the Opus File Types Context Menu editing dialogues. And I would have to go through the same rigmarole whenever I added a new tool.
I currently customise the menus via a simple drag & drop dialogue - sample attached. I'm sure I could do do all sorts of things with with Opus's File Type editing facility that I can't do with ShellToys drag & drop approach - but I'm not looking to replace Shelltoys, I'm evaluating Opus as a potential alternative for xPlorer2.
I do most of my work via keyboard shortcuts or the context menu, I don't use the mouse, instead I use the context menu and the arrow keys. So this is an important issue for me.
The purple arrow indicates what I'd have to do to move the "Directory Opus Archive" item from the main context menu to the File Folder submenu that I have already created (via the Add Menu Item button on the right).