WebDav plugin delete directory not working with IIS

[bestia]

When I want to delete a folder on IIS over Webdav it executes:

File delete: /maja\temp22
DELETE /maja/temp22 HTTP/1.1
207 Multi-Status

But the folder is NOT deleted.
Deleting files works normally.
I tried also adding the / character in options:

File delete: /maja\temp22
DELETE /maja/temp22/ HTTP/1.1
207 Multi-Status

But still it does not work.
And no errors returned.

[Hacker]

[mod]Moved to the Plugins forum.

Hacker (Moderator)[/mod]

[ghisler(Author)]

Maybe you don't have the necessary rights to delete the folders? Or the folder still contains some hidden files? I haven't had this problem with IIS so far.