>A very old form which contained a version of this ActiveX opens with OLE error "Class not registered". I was unable to find the respective ActiveX in Tools>Options>Controls>radio button ActiveX controls for some reason. I do have Microsoft Office 2010 installed on my box and use Outlook as my email client. What options do I have have to recover this form ? I don't mind deleting old ActiveX reference and putting new one, whatever it is. Surely, I don't want to install ( and I can't ) old versions of Microsoft Office.

Office 2010 comes with Outlook View Control but it has to be installed on you computer not loaded from the web. It also could be 32/64 applications bit problem.