This application allows you to calculate derivatives and solve systems of linear equations. The program also stores the results. This application is licensed as open-source software, and you can download its source code (in visual basic 6) from the author's website.

Until recently, preparing your income tax return was a real mission, where a calculator and lots of patience were the best and only tools for the job. After seeing the problems that taxpayers were encountering while preparing their statements at home, the Spanish Tax Agency created this downloadable tool to make the whole process easier and more streamlined: Progra...

TestDisk & PhotoRec are two different application athough they are packed in only one so the user can enjoy both two together. On the one side, TestDisk check your HD partitions, it obtains the information of the partition chart, compare it and if it find any error, it repairs it. It's easy, just choose the partitions you want to check and what to do with t...

PNotes is a lite program that can be really helpful if you are one of those thousands of users that need to take notes to remember tasks to do. Basically, PNotes is a tool to write quick short notes and leave them on desktop. You can personalize the notes choosing the color format and font as well as the transparency level. The notes you write on PNotes will be...

MSN Messenger has become one of the most famous programs for real time conversations. Each new version of the program is very well received by its users. Nowadays with MSN Messenger you can chat, videochat, have voice conversations, send SMS,... Having conversations with people from anywhere in the world is each time more and more efficient and funny. This vers...