If you have read about explicit, geometry-based 3D CAD, you know it is the best approach for creating flexible, lightweight designs. Now, PTC brings you a free download from the CoCreate product family - CoCreate Modeling Personal Edition, a 3D CAD system you can use for assemblies with up to 60 parts. Download a FREE version of CoCreate Modeling Personal Edition today and see how liberating an explicit, geometry-based 3D CAD system can be.

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Surface Explorer 3D plots mathematical surfaces in 3D. User defined surface equations can be explicit, implicit, or parametric. Surface and color equations are specified by user. Can export to clipboard, VRML, POV, DXF, printer. Freeware.

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SmartFTP allows you to transfer files across the Internet. With a Windows XP look and feel and features including SSL (Implicit/Explicit), FXP Support, Multiple connections, Proxy Firewall support, Drag and Drop from Explorer, and Remote Directory caching. SmartFTP is a solid FREE FTP client that is constantly being improved. Take SmartFTP for a test ride today and see for yourself for its many outstanding features.

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In real time, SpyStopper blocks spyware, Web bugs, worms, cookies, ads, scripts, and other intrusive devices to protect you from being profiled and tracked. When you are online, you may be monitored or tracked without your knowledge or explicit permission. Hackers, advertisers, and corporations may use Web bugs, spyware, cookies, worms, ads, and scripts to gain access to your information and invade your privacy.

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In real time, SpyStopper Pro blocks spyware, Web bugs, worms, cookies, ads, scripts, phishing sites, and other intrusive devices from reaching your computer. When you are online, you may be monitored or tracked without your knowledge or explicit permission. SpyStopper Pro functions like a firewall and protects your online privacy and security.

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Constable Authorization Engine (CAZE) is a .NET Framework class library for managing and using application-defined authorization policies easily and efficiently. CAZE leverages the .NET`s role-based authorization model and employs robust finite-state machine techniques, making the application`s authorization-related logic explicit and unambiguous. This improves application`s security, reduces code complexity and enables automated testing.

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