Where Class IDs Come From

Question:
I’ve just spent a useless morning surfing trying to find out where the CLASSID parameter of a VBSCRIPT OBJECT tag comes from. The most useful documentation said it comes “straight from the registry” but how do I find out what a given class id is?A VBPJ article referenced the Automatic Control Insertion Device (ACID) but I can’t find any documentation on that either.

Answer:
The value of the CLASSID parameter is actually assigned to a control by Microsoft. That’s how they ensure that each CLASSID for each control will be unique. If you are using the ActiveX Control Pad, it knows how to read the CLASSID from each control and add it to your VBScript/ActiveX code. However, there is no deep, hidden meaning behind the numbers — they are essentially arbitrary.

In cases where you are creating new controls with the Control Creation Edition, it automatically assigns numbers from a particular group, since obviously you are not going to call Microsoft to find out your number. I have yet to find a good definition, but basically it is an arbitrary number.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS