diff --git a/vala/shared_library/main.vala b/vala/shared_library/main.vala
new file mode 100644
index 0000000..2d7c234
--- /dev/null
+++ b/vala/shared_library/main.vala
@@ -0,0 +1,7 @@
+using MyMath;
+
+public void main() {
+    stdout.printf("\nTesting shlib");
+    stdout.printf("\n\t2 + 3 is %d", sum(2, 3));
+    stdout.printf("\n\t8 squared is %d\n", square(8));
+}
diff --git a/vala/shared_library/test_lin.sh b/vala/shared_library/test_lin.sh
new file mode 100755
index 0000000..69ba1cb
--- /dev/null
+++ b/vala/shared_library/test_lin.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+valac --library=test_shared -H test_shared.h test_shared.vala -X -fPIC -X -shared -o test_shared.so
+valac test_shared.vapi main.vala -X test_shared.so -X -I. -o valatest
+export LD_LIBRARY_PATH=.
+./valatest
diff --git a/vala/shared_library/test_shared.vala b/vala/shared_library/test_shared.vala
new file mode 100644
index 0000000..4f4e761
--- /dev/null
+++ b/vala/shared_library/test_shared.vala
@@ -0,0 +1,9 @@
+namespace MyMath {
+    public int sum(int a, int b) {
+        return(a + b);
+    }
+
+    public int square(int a) {
+        return(a * a);
+    }
+}
diff --git a/vala/shared_library/test_win.sh b/vala/shared_library/test_win.sh
new file mode 100755
index 0000000..cdc4580
--- /dev/null
+++ b/vala/shared_library/test_win.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+valac -C --library=test_shared -H test_shared.h test_shared.vala -X -shared -o test_shared.dll
+valac test_shared.vapi main.vala -X test_shared.dll -X -I. -o valatest.exe
+./valatest.exe