PatchFactory Full-featured byte-level patching system for bandwidth-efficient software updating. PatchFactory provides a robust feature set that gives the ability to tailor the update process to their specific needs ... Cost: $345 Buy full version       Trial version       Publisher: AgenSoft Inc.     Descriptions PatchFactory: Full-featured byte-level patching system for bandwidth-efficient software updating. PatchFactory provides a robust feature set that gives the ability to tailor the update process to their specific needs and to reduce end-user support costs. The patch building engine is an innovative standard for producing version-to-version or cumulative software updates even for Gigabyte-sized files contained in a small, reliable self-installing patch package.