Version 7 resolves the drag drop issue when using Windows 10.
The issue is one of permissions and Windows 7 does not allow you to drag/drop between one app that runs as Administrator (XPression) and a lower level app like windows explorer.
Try this. Download a tool called "Explorer++" (
https://explorerplusplus.com/) and run it by right clicking it and choosing Run As Administrator. I think you will be able to drag/drop from that tool into XPression.
#XPression