When you installed something within you user profile, it is only going to be installed under your user profile not globally. For that, the other user must install it as well. And no you won't be able to see your files unless you shared the location giving the other user rights to that path.
Since you can not change the file path for the Sense Desktop you won't be able to make a "shared" folder for everyone. You could in essence make a shared folder for users to drop QVFs into and others could copy them and place it in their directory.
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