diff --git a/samples/artprov/.cvsignore b/samples/artprov/.cvsignore
new file mode 100644
index 0000000000..253a672d51
--- /dev/null
+++ b/samples/artprov/.cvsignore
@@ -0,0 +1,6 @@
+artprovM5.mcp
+artprovM*Data
+*Classic?Debug*
+*Classic?Release*
+*Carbon?Debug*
+*Carbon?Release*
diff --git a/utils/hhp2cached/.cvsignore b/utils/hhp2cached/.cvsignore
new file mode 100644
index 0000000000..b3985f0835
--- /dev/null
+++ b/utils/hhp2cached/.cvsignore
@@ -0,0 +1,5 @@
+HHP2CachedM*Data
+*Classic?Debug*
+*Classic?Release*
+*Carbon?Debug*
+*Carbon?Release*