Located in Lake Zurich, IL. the community of St. Francis de Sales Parish came into existence on June 27, 1948 when Lake Zurich became a mission territory. Fr. George Ballweber of Buffalo Grove celebrated the first Mass held in Lake Zurich in the Ela Town Hall. Due to the hard work and sacrifices of the original 97 Catholic families in town, funds began to accumulate for the building of a church.

Prometheon installed and customized the open source content management system Mambo to meet their needs of a beautiful, easy to update website that had two distinctive looks for both their Parish and their school.