IMO provides an efficient way to optimize complex 3D models, which originate from CAD/CAM/CAE systems and other sources, for use in the Internet. Key features: Highly complex optimization algorithms designed to maintain the visual aspects of the original object. Advanced visual support - all manipulations with optimization parameters are dynamically displayed in the 3D window. Batch and manual optimization. Ability to optimize separate parts and shapes of the model. Ability to edit models: vertex, edges or shapes editing modes are available. Import of the transformation hierarchy of models. Ability to publish models on the Web. Supported formats: import VRML 1.0, VRML97, DXF v.12; export VRML97; support for GZIP compression.