Requirements

Navigation Services 1.1 is built into Mac OS 8.5. Navigation Services 1.0 requires the Navigation shared library, Appearance Manager 1.0.1 or later, and Mac OS 7.5.5, 7.6.1, or 8.1.

IMPORTANT
The Navigation shared library is instantiated on a per-context basis. Fragments with global shared-data sections should never import from per-context code fragments. For more information about code fragments, see Inside Macintosh: Mac OS Runtime Architectures.

Some extended features of Navigation Services require other components, as follows:

QuickTime for viewing and creating previews of graphic documents. If QuickTime is not installed, the preview option is disabled unless you provide your own preview function.
Systems prior to Mac OS 8.5 require Macintosh Easy Open for document translation. (Mac OS 8.5 has translation services built-in.)
AppleGuide or Apple Help for online help.

On 680x0 systems, Navigation Services 1.0 requires the CFM-68K Runtime Enabler. However, Navigation Services functions are available to both classic 68K and CFM-68K applications.

The Standard File Package is supported in Mac OS 8.X. You will obtain greater functionality and compatibility, however, by taking advantage of Navigation Services in lieu of the Standard File Package. Using Navigation Services is required for you to make your applications compatible with Mac OS X, which will not support the Standard File Package.