To install the ActiveX, you not only need to copy the file to the correct location, but also need to register the ActiveX control. For this, I advice to switch to InstallShield (ie we use installshield Express), which can take care of this.
Also, you might not legally be allowed to distribute this activeX control. It might not be freely distributable. Check that, before you distribute this!!
I would advice to have the user/customer install his version of Office, and assume that the control is already installed. Just to avoid legal issues....
If you need more help on the Installshield issue, let me know. Have no experience with Labview 6 though. Working on that....
Good luck, Oskar