Download of CopySourceAsHtml 3.1 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free tool was originally produced by J.T.Leigh & Associates Inc. The following versions: 3.1, 3.0 and 2.0 are the most frequently downloaded ones by the program users. The program lies within Development Tools, more precisely Help.
From the developer:
CopySourceAsHtml is an add-in for Microsoft Visual Studio 2008 that allows you to copy source code, syntax highlighting, and line numbers as HTML. CSAH uses Visual Studio's syntax highlighting and font and color settings automatically. If Visual Studio can highlight it, CSAH can copy it, and your source should look the same in your browser as it does in your editor.
You may want to check out more software, such as Help Generator for Visual Studio 2005, Shelled! or Dialog Workshop.NET, which might be similar to CopySourceAsHtml.