Tray Calendar for Windows - MicroCalendar pop-up reference calendar - Windows Shareware $8.95. MicroCalendar is an reference calendar (i.e. not for recording appointments, but rather for quickly looking up dates). Use it to easily check calendar dates without messing up your computer's system time.

It features: an elegant user interface; copy-date-to-clipboard and optional auto-copy of date on selection; customizable date copy format; and the display of one, two, or three months at a time; optional "magnetized" main form, and roll-up.