From Xpert-Design Software:
Xpert-Timer PRO is an ideal asset for all kinds of business, from freelancers, lawyers, repair technicians, and accountants as well as all types of major enterprises. The PRO Version offers a lot more features and network functionality. The secret to Xpert-Timer's effectiveness is the timebar that simplifies the time-tracking. It floats on the Windows desktop, and a single click or hotkey lets you access all of the program's key functions. You can create an unlimited number of clients, projects, subprojects and tasks. You can time all your projects, but Tasks are listed on a To-Do list and cannot be timed.