Freeware. 390 units in 46 categories. Has all basic categories and engineering specific categories like enthalpy, heat capacity, heat transfer coefficient, moment of inertia, surface tension, torque and viscosity. Converts feet and inches to and from decimal lengths. Converts between dynamic and kinematic viscosity. Steel hardness equivalents. Gas Constant in 900 sets of units. Excludes archaic units. Powerful formatting and clipboard features.

The GD&T Trainer: Professional Edition
Effective, economical GD and T training on CD-ROM. Contains interactive lessons, technical animations, narration, 3D part drawings, course administration tools. Valuable for designers, engineers, and anyone who uses engineering drawings.

Turbine
Calculate turbine steam consumption and exhaust steam conditions. Built-in steam properties. Wide variety of units of measure included.

Astra R-Nesting
Astra R-Nesting system provides entry and storage of information about orders and materials, automatic and interactive nesting, utilization of rests, printing nesting plans and specifications, estimation of cost of works carried out.

Universal Mechanism
The program is intended for simulation of kinematics and dynamics of planar and spatial mechanical systems. The following performances are available as results: coordinates, velocities, accelerations, reaction forces, forces in active elements etc.

CopanMobile for PocketPC
CopanMobile for PocketPC allows you to COGO (coordinate geometry), process field surveys, adjust map traverses, perform map/deed checks, calc curves and areas/perimeters, transform coords, interface with GPS, and import/export Ascii files. It's free.