Here’s how you can create a “Hello World” program in ColdFusion:

1. Open a text editor, such as Adobe Dreamweaver, and create a new file with a .cfm extension.
2. Enter the following code:

<cfoutput>
  Hello World!
</cfoutput>

3. Save the file and run it through a ColdFusion development server or by deploying it to a web server that has ColdFusion installed.
4. Access the file through a web browser by entering the URL where the file is located.
5. You should see the output “Hello World!” displayed in the browser.

Note: This code uses ColdFusion Markup Language (CFML), which is a scripting language used in ColdFusion applications. The <cfoutput> tag is used to output the text “Hello World!” to the web page.