The Visual Studio 2010 Tools For Office Runtime Is Not Installed

As warned, my USB MIDI keyboard won't work but it can at least be powered via the USB lead while using a different MIDI cable. Windows uses the supplied drivers but installs it as a USB control device rather than a Sound, Video & Game controller (which I think is the case under W98). I tried doing it manually but I expect you could've told me that would be a waste of time too!