Zebra recommends the use of Enterprise Browser APIs whenever possible. To run legacy apps through Enterprise Browser or to access functionality not implemented in EB, the APIs of PocketBrowser 2.x and 3.x, RhoElements 2.x and the RhoMobile 4.2 Shared Runtime can be used within certain boundaries. Some of those legacy APIs are published here. See the API Usage and Migration Guides for more information, and individual API reference pages (linked below) for each API's usage details and specific restrictions, if any.