>I made changes and tried reinstalling and received message to uninstall first using Control Panel's Software uninstall option but the installed Fox7 exe was not in the list. Went to Registry and delete all reference to exe which didnt help.

What OS is this on? The uninstall should be there, are you sure its not listed as something else? In the General Information screen under "Product Name", whatever that is set to will be displayed in the Add/Remove programs list.