diff --git a/String Manipulation/RfCopyMemory.cpp b/String Manipulation/RfCopyMemory.cpp
new file mode 100644
index 0000000..229f368
--- /dev/null
+++ b/String Manipulation/RfCopyMemory.cpp	
@@ -0,0 +1,10 @@
+PVOID RfCopyMemory(PVOID Destination, CONST PVOID Source, SIZE_T Length)
+{
+	PBYTE D = (PBYTE)Destination;
+	PBYTE S = (PBYTE)Source;
+
+	while (Length--)
+		*D++ = *S++;
+
+	return Destination;
+}
diff --git a/String Manipulation/StringLength.cpp b/String Manipulation/StringLength.cpp
new file mode 100644
index 0000000..92cab3d
--- /dev/null
+++ b/String Manipulation/StringLength.cpp	
@@ -0,0 +1,17 @@
+SIZE_T StringLengthA(LPCSTR String)
+{
+	LPCSTR String2;
+
+	for (String2 = String; *String2; ++String2);
+
+	return (String2 - String);
+}
+
+SIZE_T StringLengthW(LPCWSTR String)
+{
+	LPCWSTR String2;
+
+	for (String2 = String; *String2; ++String2);
+
+	return (String2 - String);
+}
\ No newline at end of file