diff --git a/Source/Tests/winchar.cpp b/Source/Tests/winchar.cpp
index 0d40a7e3..22ca474a 100644
--- a/Source/Tests/winchar.cpp
+++ b/Source/Tests/winchar.cpp
@@ -13,6 +13,7 @@ class WinCharTest : public CppUnit::TestFixture {
   CPPUNIT_TEST( testStrNCpy );
   CPPUNIT_TEST( testStrLen );
   CPPUNIT_TEST( testStrCmp );
+  CPPUNIT_TEST( testStrDup );
   CPPUNIT_TEST( testStoi );
   CPPUNIT_TEST_SUITE_END();
 
@@ -96,6 +97,16 @@ public:
     TEST_STR_CMP(empty, empty);
   }
 
+  void testStrDup() {
+    WCHAR a[] = { 'a', 'b', 'c', 0 };
+
+    WCHAR *b = winchar_strdup(a);
+
+    CPPUNIT_ASSERT_EQUAL( 0, winchar_strcmp(a, b) );
+
+    delete [] b;
+  }
+
   void testStoi() {
     srand(time(0));
 
diff --git a/Source/winchar.cpp b/Source/winchar.cpp
index 8c9c8231..5de735bd 100644
--- a/Source/winchar.cpp
+++ b/Source/winchar.cpp
@@ -78,6 +78,13 @@ size_t winchar_strlen(WCHAR *ws)
   return len;
 }
 
+WCHAR *winchar_strdup(WCHAR *ws)
+{
+  WCHAR *dup = new WCHAR[winchar_strlen(ws) + 1];
+  winchar_strcpy(dup, ws);
+  return dup;
+}
+
 int winchar_strcmp(const WCHAR *ws1, const WCHAR *ws2)
 {
   int diff = 0;
diff --git a/Source/winchar.h b/Source/winchar.h
index de16eb6c..adef3b24 100644
--- a/Source/winchar.h
+++ b/Source/winchar.h
@@ -5,5 +5,6 @@ char *winchar_toansi(const WCHAR* ws, unsigned int codepage = CP_ACP);
 WCHAR *winchar_strcpy(WCHAR *ws1, const WCHAR *ws2);
 WCHAR *winchar_strncpy(WCHAR *ws1, const WCHAR *ws2, size_t n);
 size_t winchar_strlen(WCHAR *ws);
+WCHAR *winchar_strdup(WCHAR *ws);
 int winchar_strcmp(const WCHAR *ws1, const WCHAR *ws2);
 int winchar_stoi(const WCHAR *ws);