TesoPost 4.2 was free to download from our software library. The actual developer of the free software is TechniSoft CAD/CAM AG. The software lies within Photo & Graphics Tools, more precisely 3D Design.
From the developer:
The generalized postprocessor TesoPost allows you to translate the milling or wire EDM programs of (nearly) all CAD/CAM systems into the format of (nearly) all NC controls.
The TesoPost standard version calculates up to 3½ axis. For simultaneous 5 axis machining the correct selection will be extended TesoPost.
You may want to check out more software, such as HighRoad, AccuTrans 3D or 20-sim Pro, which might be related to TesoPost.