Log Message:
-----------
Only install the server on NT derivatives (don't need to worry about NT < 4.0, as you cannot install MSI packages on them anyway)
Modified Files:
--------------
pginst/wxs:
pginst.wxs (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/wxs/pginst.wxs.diff?r1=1.7&r2=1.8)