We design software using following development environments:

• Microsoft Visual Studio 2017 (C#, Basic, ASP.net 4.7)
• Microsoft Visual Studio 2015 (C#, Basic, ASP.net 4.6)
• Microsoft Visual Studio 2012 (C#, Basic, ASP.net 4.5)
• Microsoft Visual Studio 2008 (C#, Basic, ASP.net 3.5)
• Microsoft Visual Studio 2005 (C#, Basic, ASP.net 2.0)
• Microsoft Visual Studio 2003 (C#, Basic, ASP.net 1.1)
• Microsoft Visual Studio 6.0 (C++, Visual Basic, ASP)
• Visual Basic for Application: Word, Excel, Access, Outlook, AutoCAD, ...

We use following database engines for our software:

• Microsoft SQL Server 2012
• Microsoft SQL Server 2008 R2
• Microsoft SQL Server 2005
• Microsoft SQL Server 2000
• Microsoft OLAP and Microsoft Analysis Services
• MySQL 4.x and 5.x