multiple DB's on windoze...

Hey guys,
I'm venturing into the windoze world from Unix... I am setting up a 9i and 10g database on this puppy.. And my question is:  

1. How do I handle setting the different environment variables between the instances? (i.e. PATH for example)

Any other "gotchas" that present differences/issues in doing this on windoze? I have the Unix stuff covered like the dew in Dixie. But I'm walking in the windoze cow pasture, the grass is high, and I just can't avoid some of the "mess" yet...    

Thanks in advance!  

Greg Loughmiller  

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