Cygwin and Native Windows Install of Postgres

["Alf Lacis" <Alf(dot)Lacis(at)aiscientific(dot)com>]

Dear PG Novice List,

http://pginstaller.projects.postgresql.org/faq/FAQ_windows.html#3.1 says 
to remove cygwin\bin from the path before running "the installer or the 
installed version of postgresql", but it is completely silent and does not 
offer *any* clues as to what to do afterwards, e.g. paths, DLLs, etc.
 
Using Cygwin tools we have been building lots of cross-development 
applications for robots, including maintenance of stuff already in the 
field, so we don't want to muck up the current toolchains.
 
Now I need to install postgresql to maintain an application which will run 
on a PC which uses the 'native' version of PostgreSQL 8.1, not the cygwin 
version.

What should I do so that I can have both environments (cygwin & 
windows-native postgresql) on my work PC?

Should I buy a second PC? 

Should I use different logins? 

Should I use a fudge such as run-application-as-different-user? Services 
as different user?
 
-- 
Regards, 
Alf Lacis
Senior Software & Design Engineer 
A.i. Scientific Pty Ltd 
10-22 Hornibrook Esplanade 
CLONTARF QLD 4019 
AUSTRALIA 
Ph: (+617 or 07) *3105 5087* 
http://www.aiscientific.com/