Viewpoint Interchange is available for Microsoft Windows and SGI IRIX. This manual describes both versions.

Memory requirements
Interchange's conversions are performed completely in memory. This includes any virtual memory provided by the operating system. You'll need more memory to convert models that have large numbers of points, edges and faces. A good rule of thumb is that if you can load and render a 3D object in your modeling program, you have enough memory to convert it to another format with Interchange. If you can't convert a model with Interchange because of a lack of memory, chances are good that your system won't be able to render it, either.

Making Backups
Be sure to make a backup copy of the Interchange master media. This personal backup copy is your protection against catastrophic failure. Please do not give copies to others. Please do not pirate Interchange.

Updates and Registration
Please take a moment to fill out the registration card. This is the only way we can tell you about bug fixes, upgrades and new products. Even if you live outside the United States, we'll tell you about upgrades. Only registered owners can receive upgrades and technical support. Your product's serial number is printed on the registration card. Be sure that you have a copy of this number. You must supply it when you request an upgrade or call for technical support.

Technical support
Technical support is available to all registered customers. Support is available in several forms. If you need help immediately, you can contact technical support at the phone number below. Be sure to have your registration card and serial number ready when you call.

We may ask you to send us the file that demonstrates the problem. We consider your data confidential, of course. Without the file, it is often difficult to find the bug or explain the problem.

If you prefer to write, contact technical support at the address on the cover page of this manual. Include a disk with the problem object, and be sure to write your name and address on the disk label.

For technical support, call (801) 229-3000 or fax (801) 229-3300.

The Viewpoint DataLabs web site is at www.viewpoint.com. You can send a technical support request to support@viewpoint.com.

Credits
We would like to thank all the people who help develop and test the Interchange system, especially those software companies who give us the information we need to translate their file formats.