WinQcad by Microcad

WinQcad software is a complete EDA (electronic design automation) system for PC compatible computers and Windows 95/98/NT/2K/XP operating system. It includes schematic and PCB (printed circuit board) modules, which can be used either in conjunction or independently. The schematic module supports flat design, simple hierarchy, and complex hierarchy (providing for multiple instances of the same schematics). The part/net list generated by the schematic module provides a link to the PCB module, which supports interactive and automatic placement of elements, a manual and full automatic wire routing, as well as an exhaustive DRC test.