OS WinXP SP3, EmEditor 11.0.2.

My system drive is D:. Sometimes I discover that a new directory named Emurasoft appears in the root of this disk. Inside it only one empty directory is present, the full path is
D:\Emurasoft\EmEditor\Workspace\

Unfortunately, I cannot find out at what moment it is created. I tried restarting EmEditor, closing tray icon, reopening EE again, saving and restoring workspace (since the directory name suggests that it has something to do with workspaces), but all in vain, the directory does not appear, and the workspace is saved and restored correctly, using "Local Settings\Application Data\Emurasoft\" directory in my profile. Of course, I don't monitor the root of the drive constantly, but after some time I navigate there for something or other, and - bump! - "Emurasoft" is sitting there again.

I think I'm going to write a simple monitoring program that will look for appearance of this directory for me and notify with messagebox, but before that I decided to write here and ask, maybe, you have any idea how this could happen?