Windows – Can Microsoft Office 2007 be installed on system with Office 2010 already installed

I have a Windows 7 machine with Office 2000 installed.

I am doing some development with Outlook Add-Ins and I installed Office 2010 Professional Plus. Development of this add-in is going fine.

My client may delay upgrading Office 2007 to Office 2010 so I would like to install Office 2007 alongside my current installation of Office 2010 and test my Add-In in the older environment.

I can configure Outlook 2007 to use a different email account than that used in Outlook 2010 (i.e. this is strictly for development testing; no need to share a .pst file between versions).

Is this possible – or must I un-install Office 2010 (Outlook 2010) in order to test with the older Office 2007?