However, there are a few extra rules you must follow when updating:
Instead, unzip the new version in a DIFFERENT directory of your choice (name it "NewXFolder", for example).
Alternatively, you can de-install the old XFolder version and restart the WPS. This
should unlock the XFolder files. Then
copy the new files into the old XFolder directory and then install the new version.
If you're updating from XFolder V0.21 and the applications defined in your existing configuration folder start displaying error messages, you may need to put an extra "%" sign into the parameters list of the corresponding program object in the configuration folder. See "Program Objects" for details on this.