Chapter 25. Working with the System Registry
ColdFusion on the Windows platform has probably encountered the
system registry at one point or another. The registry is a database
of sorts that contains configuration information on virtually every
user and every piece of hardware and software (including ColdFusion)
on your system. The registry is organized in a hierarchical fashion
like that of a tree. ColdFusion provides you with a tag for working
with the system registry, the
which is capable of querying information from the registry, as well
as setting new values and deleting unwanted
Before we get into the specifics of manipulating registry data, let’s look at how the registry is organized. There are two basic units that make up the registry, keys and values. A key is a logical container similar to a filesystem’s directory. Like a directory that contains files and additional subdirectories, keys can contain values and/or subkeys. A registry key and the subkeys and values below it are referred to as a branch. If we were to write out the structure of a typical registry branch, it might look something like this:
This branch stores values used by ColdFusion to interface with mail servers. As you can see, the key/subkey relationship looks exactly like a directory structure might (in DOS anyway).
Values (like files) are actually a representation for name/value pairs. Values are also ...