did someone meet problems using Visio Viewer 2003 and Visio Professional 2003 on same machine?

Visio Viewer 2003 and Visio Professional 2003 don't work together properly.
If you install visio viewer 2003 and then try to open some .vsd file with IE
it opens fine, but if you then run Visio Professional you'll see that
windows installer runs. It change IE configuration so it starts to use
"Visio service" to display .vsd (and other associated files) not Visio
Viewer plug-in. This is not right because I don't want to be able to change
..vsd files with IE, i just want to view them. Also this became a problem
when I need to view .vsd files through Web, cause after I click on link to
my .vsd file and answer in dialog window "Open" nothing happens! It just
show error page.
Question is: is there some way to change IE configuration (may be in
registry) so it starts to use Visio Viewer again?