Editing Securing your Windows Service installation (section)

=== Prepare permissions ===
# with Windows Explorer navigate to "FileZilla Server" installation directory
# locate "FileZilla Server.xml" file, service requires write permissions to this file
#* If you have "Simple File Sharing" enabled (no "Security" tab in file properties)
#*# click "Tools" in Explorer menu, select "Folder options"; "Folder Options" dialog appears
#*# select "View" tab
#*# uncheck "Use simple file sharing (Recommended)"
#*# click OK
#* right click "FileZilla Server.xml" select "Properties"; "Properties" dialog appears
#*# select "Security" tab, click "Add" button; "Select User or Group" dialog appears
#*# type "filezilla" into "Enter object names to select" textbox
#*# click "OK"; "filezilla" user is added to permissions list
#*# select "filezilla" user and check "Write" in "Allow" column
#*# click "OK"; permissions are now saved
# if you use logging, set "Write" access to "Logs" folder too
# if you upload to some folders set "Full Control" to each topmost writable folder you want to use, the changes are propagated to children
# if you use SSL, double check if both the SSL certificate file and private key file are readable by "filezilla" account, to not break the SSL connection
# if you want hide "Security" tab, enable "Simple File Sharing" back on
# switch to back to "Services" console and start "FileZilla Server FTP server" service; it should run now in "filezilla" account context
# verify FTP and FTPS/FTPES connection and check uploading to writable directories
# congratulations you have secured your FZS server!
# logout from Administrator account
# Windows Server >2012: Error 5: Access Denied -> your Filezilla User have to Access the "Filezilla server.exe" readable.