Time Planner Deluxe was a Personal Information Manager (PIM) for Windows that I wrote with a friend in the early nineties. It took us about a year to get version 1.0 ready for commercial release. Our first success was with a huge OEM deal of 250,000 units that went to the US Air Force; we also scored a licensing deal with Softkey in which a rebranded version sold 60,000 copies at retail. This was written in Borland C++, arguably the best Windows development tool at the time.