Original title: Older e-mail program vs Outlook to open old mail.

I save many e-mails that relate to my volunteer work, and I save them in regular windows folders rather than folders on the e-mail program page.

This has worked fine on 2 desktops using Windows XP.  I can open any of these files ending with .email or .eml if the email program that is started by clicking the envelope icon on my home MSN page.

However, after moving some of these files to my laptop which runs on Windows 7, trying to open one of these files brings up a wizard that wants to modify my account to use Outlook as my e-mail program. That may be fine for my laptop, but will this screw up my desktops which use XP and the older mail program which is probably just one step away from Hotmail?