Upon starting Dreamweaver, I get window for the Advanced HTML Editor 3 Installation Wizard. When I click through to install, I get an alert message saying:

While executing onClick in dmxAdvHTMLEdit30_install.htm, the following Javascript error(s) occurred:

At line 1 of file "(my info deleted)Library:Application Support:Adobereamweaver CS5:en_US:Configuration:sharedMXzone:Scripts:dmxInstaller104.js":
getDocumentDOM:Argument number 1 is invalid.

I bought this extension a while back and have never gotten it to work. Can someone help?

I asked this question by direct email, got no answer.

Tried the support forum, got no answer.

Any software vendor needs to do a better job at support than this.