[Dx4win] deleting old version

[n4dsp]

Presently running 7.02 and I have 6.04 in another directory. How can I 
delete 6.04 without harming 7.02? I went into the control panel in WindowsXP 
and it is not showing 6.04 but it does show 7.02.

thank you
john-n4dsp