Chapter 6. Programming the COM+ Catalog
COM+ stores the information about your applications, your components’ configuration and physical locations, global machine settings, and every other bit of data COM+ requires to operate in a repository called the COM+ Catalog.
The Catalog exposes COM+ interfaces and components that allow you to access the information it stores. Anything you can do visually with the Component Services Explorer, you can do programmatically as well—from exporting COM+ applications to doing fine-grained configuration such as enabling auto-deactivation on a method. In fact, the Component Services Explorer and the various wizards are merely handy user-interface wrappers around the Catalog interfaces and objects.
This chapter covers the COM+ Catalog programming model and provides you with useful code samples you can use as a starting point for automating all tasks of administrating COM+ applications and services.
Why Program the Catalog?
Some of the more advanced features of COM+ lack support in the Component Services Explorer and are available only by configuring your components programmatically. These features are largely tied in with COM+ Events (discussed in Chapter 9) and include COM+ events filtering and managing transient subscriptions to COM+ events.
Programming the COM+ Catalog gives you access to much more than advanced services. By learning to program the Catalog, you can provide your system administrators with helper utilities that automate tedious tasks. ...
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