Running from an external drive is not supported in the trial version of yaTimer, it is enabled when you enter your activation code after buying a license.
yaTimer - my time tracking application, can run from a portable drive, it can run from anything with a drive-like interface, a USB flash drive, a memory card, a digital camera, an iPod or an external hard disk.
All of the application’s features work when running from a portable drive except for auto-update.
To run from a portable drive:
Open the main menu.