User Guide

852 Chapter 2: ActionScript Language Reference

Usually you should find that the default value of System.exactSettings is fine. Often your

only requirement is that when a SWF file saves a shared object in one session, the same SWF file

can retrieve the same shared object in a later session. This situation will always be true, regardless

of the value of

System.exactSettings. But you might want to change System.exactSettings

from its default so that a SWF file published for Flash Player 7 or later can retrieve shared objects

originally created by a SWF file published for Flash Player 6. Because the player has stored the

shared objects created by the Flash Player 6 SWF file in a folder that’s specific to the superdomain

of that SWF file, you should use superdomain rules for shared object retrieval in your Flash

Player 7 SWF file. This step requires specifying

System.exactSettings = false in your Flash

Player 7 SWF file. It is also possible that you might have SWF files that are published for Flash

Player 6 and Flash Player 7 SWF files that share the same shared object data. In this case, simply

pick a value for

System.exactSettings (either true or false) and use it consistently in your

Flash Player 6 and Flash Player 7 SWF files.

Example

The following example shows how to specify superdomain matching rules:

System.exactSettings = false;