locate link browser, W7 & Outlook 2003 (SP3), Firefox

I cannot open links in Outlook messages.  I have had & solved this in XP.  Can't see a similar fix for W7 (64bit).  Using W7-64, Office 2003 SP3, and Firefox 3.6.3 (default).
Links worked fine until this morning.  No idea what caused the change (nothing new installed).
An earlier posting solved this w/ SP3.  Didn't work for me.
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Chris BRetiredCommented:
Do they just not open, or do you get a message such as "This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator." If this message then

Chris B
danielrtindallAuthor Commented:
They don't open.  I get the file dialog to open an *.exe file.  If I close it without input, the operation halts (link not opened).  If I navigate to firefox.exe, Firefox opens to the home screen.  In neither event does the link actually open.
And it's working again today.  Go figure.  Maybe the SP3 upgrade required two reboots.
Jason WatkinsIT Project LeaderCommented:
Installing a service pack for any piece of M$FT software requires a reboot.

Perhaps the link handler for Outlook 2003 is not properly defined? I am actually quite surprised that Outlook 2003 is actually running, at all, on Windows 7 x64.
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danielrtindallAuthor Commented:
None of the suggested solutions were applicable, but for the present, the problem which mysteriously appeared has mysteriously disappeared.  Probably not forever, but for now.
BTW, this is related to a similar problem common with Firefox and XP, which is easily resolved.  This seems to be a different animal.
Jason WatkinsIT Project LeaderCommented:
Windows 7 is a significant departure from Windows XP.

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danielrtindallAuthor Commented:
True on both accounts.  We run a simple operation, and only need to upgrade because of vendor extortion or we'd still be on W2k Server, XP and O2K.  Hardly any of my users would know the difference.
For now, I'm satisfied that the problem went away, but uneasy that both were inexplicable.
danielrtindallAuthor Commented:
Not really solved, but no reason to drag on.
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