Doubleclick ISO file to open CDBurnerXP

I recently updated to DOpus 10 and now when I double click on an ISO file it opens it up as if it was a folder. This behavior is fine for handling ZIP or RAR files but I would prefer that when an ISO file is double clicked that CDBurnerXP be started. CDBurnerXP is my default handler for ISO files. Is there a way to select which types of archive files get handled like folders and which launch their default programs?

Settings / Filetypes / File Type Groups / Archives, remove .ISO from the extensions list.

Thanks - that worked fine. You guys are very quick in responding!