The members of the Supplest development team, leaded by their director, Arq. Carlos Tealdi, have been pioneers in applications development for Windows platform in Argentina. With this goal in mind, Carlos Tealdi, along with other partners, founds LT Systems Company in the city of Santa Fe, Argentina, in September 1990.

In 1993, Compumagazine magazine -then leader of the market- invites Carlos Tealdi to become a permanent article writer on issues concerning the use of Windows, product analysis and other technical aspects.

The same magazine invites him to give lectures on subjects related to Windows application development. From 1993 to 1995 he develops for MP Editions (then publisher of Compumagazine, Byte and PC Users magazines, among others), systems for taking polls on computer science subjects, by using interactive positions with touchscreen monitors, which were used in computer science shows in Buenos Aires.

In 1994 LT Systems begins to commercialize the 'Consultorio Médico' system throughout Argentina. It was used for clinical histories management, being one of the five first systems for the Windows platform in the national market.