DriveHQ Desktop Express maps a virtual network folder in your Windows Explorer (My Computer). The virtual folder name is: "My DriveHQ". It also adds a desktop icon "My DriveHQ", with features similar to "My Computer". You can drag and drop files, edit file.

The main difference is it doesn't have a drive letter. So you cannot directly save files to My DriveHQ from your other Windows applications (e.g. Notepad). However, if you open a file in "My DriveHQ" using Notepad, after you finish editing, just save it, and the file will be saved locally first (which is fast and reliable), then automatically sync-ed back to DriveHQ.