diff --git a/compiler/cpp/src/windows/config.h b/compiler/cpp/src/windows/config.h
index 9d75e80..356f4e5 100644
--- a/compiler/cpp/src/windows/config.h
+++ b/compiler/cpp/src/windows/config.h
@@ -37,6 +37,10 @@
 #define PRIu64 "I64d"
 #define PRIi64 "I64d"
 
+// squelch deprecation warnings
 #pragma warning(disable:4996)
+// squelch bool conversion performance warning
+#pragma warning(disable:4800)
+
 
 #endif // _THRIFT_WINDOWS_CONFIG_H_
diff --git a/compiler/cpp/src/windows/version.h.in b/compiler/cpp/src/windows/version.h.in
index 94b7c56..33708ba 100644
--- a/compiler/cpp/src/windows/version.h.in
+++ b/compiler/cpp/src/windows/version.h.in
@@ -28,15 +28,6 @@
 #error "This is a Windows header only"
 #endif
 
-#define PATH_MAX MAX_PATH
 #define THRIFT_VERSION "@PACKAGE_VERSION@"
 
-#ifndef S_ISDIR
-#define S_ISDIR(mode)  (((mode) & S_IFMT) == S_IFDIR)
-#endif
-
-#ifndef S_ISREG
-#define S_ISREG(mode)  (((mode) & S_IFMT) == S_IFREG)
-#endif
-
 #endif // _THRIFT_WINDOWS_VERSION_H_