How do you figure out what programs are using the "Dokan Library" freeware?

Do you have experience with this Windows Dokan FUSE-style freeware?

How do you figure out what programs are using the "Dokan Library" freeware?
http://www.bild.me/bild.php?file=4516003dokan.jpg

Earlier this week I had MTPDrive freeware working just fine, and then later
this week I installed Android Studio freeware on Windows to create and run
a hello-world app on Android as the first step in making freeware for
Android that is always free, never has ads, needs no server, and doesn't
spy on people.
http://www.bild.me/bild.php?file=7570013helloworld01.jpg

After running my extensive tests last week on the Android mounting
freeware, I deleted MTPDrive (and all the other software I installed during
those tests); but today I needed MTPDrive to run a Windows batch command on
the mounted Android filesystem over USB.

Now when I try to re-install MTPDrive, I get this error:
"There is a Dokan library already installed but it is not compatible with
the MTPdrive. You have to remove it before the MTPdrive can be installed."

OK. I never heard of a "Dokan Library" for Windows before (have you?).
Googling, it's apparently Windows freeware to create a virtual file system.
o Wikipedia https://en.wikipedia.org/wiki/Dokan_Library
o Home Page http://dokan-dev.github.io/
Dokan is similar to the FUSE (Linux File System in User Space)
user mode file system, but Dokan works on Windows.

Hmmmm... I didn't install "dokan" on purpose, so something else did.
But what?

Do you have experience with this Dokan FUSE stuff?
How do you figure out what programs are using the "Dokan Library" freeware?
More to the point, which version of Dokan do you use that is compatible?

On Sat, 27 Oct 2018 05:55:14 -0000 (UTC), Arlen Holder wrote:

Do you have experience with this Dokan FUSE stuff?
How do you figure out what programs are using the "Dokan Library" freeware?
More to the point, which version of Dokan do you use that is compatible?

(This is my first experience with the word "dokan".)

Running a "dir /s/a/l/on/b c:\* 20181026salonb.txt" and then grepping
for "dokan", I see there are a few files in FTPUse that use dokan:
c:\app\network\ftp\ftpuse\dokan.dll
c:\app\network\ftp\ftpuse\dokanctl.exe
c:\app\network\ftp\ftpuse\license.dokan.dll.txt
c:\app\network\ftp\ftpuse\license.dokan.sys.txt

Uninstalling FTPUse with the older (non spyware) version of CCleaner
cleared up the error with MTPDrive.

That's interesting, because those results imply that you can't have both
MTPDrive and FTPUse simultaneously, which would be too bad because they
both do what you want, but one is over WiFi while the other is over USB.
o MTPDrive mounts native Android filesystems as a drive letter over USB.
o FTPUse 'mounts' FTP-shared Android filesystems as a drive letter over WiFi.

That's too bad if these two programs can't coexist.
Does anyone know more about this Dokan version incompatibility?

(This is my first experience with the word "dokan".)