Index: MapGuide.wxs
===================================================================
--- MapGuide.wxs (revision 4992)
+++ MapGuide.wxs (working copy)
@@ -752,8 +752,27 @@
MGWEB_CONFIG="APACHE" AND &WebExtApacheFeature=2
-
- VersionNT<502 AND NOT Installed AND &CSMapFeature>2
+
+
+ ((VersionNT64 AND MGWEB_CONFIG="IIS") OR VersionNT<502) AND NOT Installed AND &CSMapFeature>2