diff --git a/.gitignore b/.gitignore
index 3dc27a3..0eac2e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -205,3 +205,4 @@ dev/UnitTest1/Debug/UnitTest1.tlog/link.read.1.tlog
 dev/UnitTest1/Debug/UnitTest1.tlog/link.write.1.tlog
 dev/UnitTest1/Debug/UnitTest1.tlog/UnitTest1.lastbuildstate
 dev/UnitTest1/Debug/UnitTest1.tlog/UnitTest1.write.1u.tlog
+dev/.vs/dev/v16/.suo
diff --git a/add/.vs/add/v16/.suo b/add/.vs/add/v16/.suo
index 93218fc..9e3ad2b 100644
Binary files a/add/.vs/add/v16/.suo and b/add/.vs/add/v16/.suo differ