diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index 748683d0..c5babf51 100644
--- a/VisualStudio.gitignore
+++ b/VisualStudio.gitignore
@@ -172,3 +172,9 @@ UpgradeLog*.htm
 
 # Microsoft Fakes
 FakesAssemblies/
+
+# Klocwork
+.klocwork
+
+# WinMerge
+*.bak