A family of Microsoft word processing software products for creating web, email, and print documents.
I can't see any way for Chrome to set which program gets run. I can't see how you would do this with IE, Firefox nor Safari either.
I haven't experimented much with this, but in Firefox there is an Application tab in the Options dialog box. And Internet Explorer's Internet Options dialog box lets you access the Default Programs applet in Control Panel.
However, you have clearly demonstrated that some settings require registry edits. Thanks for the follow-up.