Get prompt to install Word 2000 when click Word file

I have a Dell computer purchase last December. I have Word 2003 =
installed. =20
For some files, double clicking gets the prompt to install Word 2000. I =
can=20
only get to this file by going to the Start Menu and clicking on Word =
2003=20
and then to the most recent file. If I go to My Documents and click on =
this=20
file, I get the Word 2000 sign up window. This is kind of scary because =
I also=20
cannot do a Search. If you can shed any light on that, I'd appreciate =
hearing=20
about it.

When I go to Control Panel, Add/Delete Word 2000 SR-1 is listed but not=20
Word 2003. I assume the latter is in Works, but I'm not sure.

John