How to close running 3rd. party programmes

In a nutshell, I recently bought FSHotSFX and am trying to work out a way to close it down once my FS9 flight is under way, and re-open it as soon as I have landed, but without disrupting my FS9 flight in any way. (FSHotSFX has the very annoying side-effect of switching off my NAV1 & NAV2 radios as soon as they intercept the destination ILS runway frequency. I switch them back on, FSHotSFX turns them off again. Great! Their support hasn't suggested a solution that fixes this. But I just love the AI traffic sounds FSHotSFX provides at airports and am very loathe to abandon it - I'm trying to have my cake and eat it, in effect).I tried writing a script which 'nobbled' the FSHotSFX folder, by renaming it to FSHotSF~, and another to re-enable it by changing the folder name back to what it should be, and then assigning a keyboard shortcut to each. Of course this doesn't work, as the FSHotSFX data is all loaded at start-up, so renaming the relevant folders has no effect - the programme runs on anyway. So, in essence, my question is, is there any way shut down a third party programme whilst flying FS9, and if this is possible (can you engineer a keyboard shortcut so that it closes, as well as opens a programme?), how do I stop FS9 minimising to the taskbar when it does so? Maybe I am asking the impossible!Thanks,Martin