
2franziscko
I had tried to use the 7Zip 9.22, but it can not upgrade directly.
So, currently 7zip Plugin is still using the code of 7Zip 9.20.
Maybe when 7Zip has a new stable version, I will try to update the plugin.
2sam5 and gora
I suggest you using Total7Zip for other archives, I use Total7Zip too.
2MaxX
Today, after I checked this thread, I tried to abort 7zip plugin processing when unload plugins (via DllMain case DLL_PROCESS_DETACH), the 7zip plugin stopped and return the request of DLL_PROCESS_DETACH for dll unload, but the dialog of TC for archive plugins was still there (background process dialog). I think, there should be a lot of code need to add to TC to prevent this problem, but this is just making the code hard to maintain. And I think it is not worth.
So, please take ghisler(Author) and MVV's advice to avoid the problem. Or using Total7Zip ( again

2Evds
When you pack a large set of files, the plugin will gather the file information, like filename and filesize, to build a file list, and then pack each file from the list.
Current version can only let you do abort or background after the file list is built.
I will check if it is possible to let you do abort or background immediately.