PowerToy Calc

A much more complete version of the Windows Calculator

Sky Charts

Hundreds of star charts in a single program

SpeedCrunch

Mathematical calculations within everyone's grasp

ATCalc

Customizable scientific and graphic calculator

Scalextric Track Length Calculator

Measure the length of your slot tracks

OpalCalc

Multiline calculator that integrates natural language

Abacux

Calculus program developed for chemists, physicists and architects

Versaverter

Easily convert measurement units

Asynx Planetarium

The Universe from your computer

Moffsoft FreeCalc

Useful calculator similar to that of Windows

Khi3

Complete scientific calculator with plenty of options

Celestia

Travel around the Universe from your PC

Virtual Moon Atlas

Complete and appealing virtual atlas of the Moon

English-Spanish Interpreter

Offline English Spanish translator for your PC

Microsoft Translator

Microsoft's language translator for Windows

Calculator

Carry out the fastest maths calculations

SQL Server 2005

The free lightweight version of SQL Server 2005

SQL Server 2000 SP4

Latest update pack for SQL Server 2000

MDAC 2.61

Data Access Components version, appropriate for older versions of Windows

SQL Server 2012

Excellent platform for database management

MySQL 5

The revolution in the database world

SQL Server 2008

Practical database server

SQL Server Management Studio

Utility to manage the components of SQL Server 2017

Microsoft Access

Office's database application

Oracle

Relational database free of charge

SQL Server 2005 SP2

Powerful database engine designed by Microsoft

Wampserver

Create a local server on your PC

MDAC 2.8

The components necessary to access any database

MySQL Workbench

Design and model your MySQL databases

SQLyog

Very practical graphical interface for MySQL

MySQL 5.1

The database aimed at working with web applications