Win 95/98/NT4/2000/ME/XP: Tracks and reports your computer usage by project and/or category. Personal Timeclock (TM) can help you with client billing, and can also save you money at tax time by reporting how much of your computer use was for business purposes. It is inexpensive, easy to use, and provides the written documentation the IRS wants to justify your business deduction for depreciation of your computer.