+ /MD /O2
+
+# /W3 = warning level
+# /GX = Enable exception handling
+# /FD = Generate file dependencies (what ever they are)
+# /c = compile without linking
+# /FR = Generate browse info (.sbr file that gets combined into .bsc)
+# /Fo = object file name (or at least path)
+# /Fd = debug database name (or path)
+# /MD = Runtime library: Multithread DLL
+# /MDd = Runtime library: Multithread DLL (debug)
+# /Od = Disable optimising (debug)
+# /O2 = Optimize for speed
+# /YX = Automatic use of precomipled headers
+# /Gm = Minimal rebuild (some cpp class stuff)
+# /Zi = Program database for debuggers
+# /ZI = Pgm database with special "edit&continue" stuff - not available in C5