Stock Doctor
Stock Doctor is an existing application which analyses stock prices and keeps a history of a portfolio. It is sold through a subscription system where the customer’s database is updated regularly with latest prices and expert comments and tips. It was being supplied on CD but the owners wished to take advantage of the new availability of the internet to deliver information cheaper and more timely. Digressoft was commissioned to make that happen. The database was too large to send every time so I hunted around and found Make Update, an open source software patching tool. With a few improvements and bugfixes it became the basis of auto updating software and database. My fixes were returned to the author and became the basis of the next release of Make Update.