What Is CLSID?

January 19, 2008

Before you go ahead and download a registry cleaner understand why it

is necessary. As a web page loads on your system, you may be prompted

to install several ActiveX components before the page can be fully

downloaded. This is so that the browser can interpret the ActiveX

components and display them properly on the system. This only would

only occur if the controls used in the web page were not already on

the system. If you decline permission for the installation, the page

will not function properly. However, once these ActiveX controls are

on your system, you won't have to download them again, even when you

come across them on other web sites. These downloads clutter up the

registry over time and need to be removed with the help of some

registry shareware cleaner.

Other ID Tags

So how can the web page determine that the required ActiveX controls

are not installed on the system or not? The browser does this by

referring to the 'CLSID' in the 'OBJECT' tag of the web page. To cut a

long explanation short, an ActiveX control is added to a web page

using theand container tags. The 'CLSID' is unique to each ActiveX

component; it is with the 'CLSID' that you specify which control you

are using. The Registry has a special section for CLSID and they run

into thousands of ID's. The useless records in the Registry have to be

removes with the aid of a registry cleaner. Free PC registry cleaners