Strange bugs when cancelling unpacking

[DrShark]

1) I cannot cancel unpacking from msi files (msi plus plugin).
'Cancel' button simply not works. It's a bug or wcx interface feature?
2) realy strange behaviour when tryng this:
begining unpacking, then pressing 'Cancel' when progress 0 or just begun.
Make it for several archives one by one.
You'll be surprised: from one archive will be extracted nothing, from next - extracted content from previous archive.
Looks like it's feature of working with %temp%\_tc folder...
3) with some plugins happening crashes when cancelling unpacking:
---------------------------
Total Commander
---------------------------
Access violation at address 7E3800BB. Write of address 04A89000.
Please report this error to the Author,
with a description of what you were doing when this error occured!
Continue execution?
---------------------------
Yes No
---------------------------

[ghisler(Author)]

1) TC supports it, but all plugins have to support it too!
2) do you get this only with the msi plugin
3) what plugins? The error address isn't in TC itself.

[DrShark]

2) I'll create a video and send to youre email;
3) IIRC it was 7z or 7zip. I'll check other plugins.