diff --git a/src/cstrings.d b/src/cstrings.d
new file mode 100644
index 0000000..1134b36
--- /dev/null
+++ b/src/cstrings.d
@@ -0,0 +1,40 @@
+(****************************************************************************
+ * File name:       CSTRINGS.D
+ * Created On:      Fri 02 Oct 2020 07:27:00 PM CEST
+ * Last Modified:   Fri 02 Oct 2020 07:46:49 PM CEST
+ * Author:          Jali <jali@orca-central.de>
+ ****************************************************************************
+ * Header file for an implementation of C-Like strings                          
+ ****************************************************************************)
+
+DEFINITION MODULE CStrings;
+
+(*
+ * The base data type is a POINTER TO CHAR, that is equal
+ * to the C own char* type.
+ * This type must be NULL-terminated.
+ *)
+
+CONST
+    NULL = CHR(0);
+
+TYPE
+    CString : POINTER TO CHAR;
+
+PROCEDURE Length(str : CString) : LONGCARD
+    VAR
+        count : LONGCARD;
+        countPtr : POINTER TO CHAR;
+BEGIN
+    count = 0;
+    countPtr = str;
+    WHILE (countPtr^ <> NULL) BEGIN
+        count += 1;
+    END; (* WHILE *)
+
+    RETURN count;
+END Length;
+
+END CStrings;
+
+(* vim: set filetype=modula2: set nospell: *)
diff --git a/src/cstrings.i b/src/cstrings.i
new file mode 100644
index 0000000..9a42203
--- /dev/null
+++ b/src/cstrings.i
@@ -0,0 +1 @@
+(* vim: set filetype=modula2: *)
diff --git a/src/transprt.d b/src/transprt.d
new file mode 100644
index 0000000..c08569b
--- /dev/null
+++ b/src/transprt.d
@@ -0,0 +1,38 @@
+(****************************************************************************
+ * File name:       TRANSPRT.D
+ * Created On:      Fri 02 Oct 2020 07:27:00 PM CEST
+ * Last Modified:   Fri 02 Oct 2020 07:27:23 PM CEST
+ * Author:          Jali <jali@orca-central.de>
+ ****************************************************************************
+ * Header file for all STinG releated source files                          
+ ****************************************************************************)
+
+DEFINITION MODULE Transport;
+
+(* 
+ * Declare a BOOLEAN type, that is compatible to 
+ * the C-declaration. This implements BOOLEAN as
+ * a 16 bit signed integer, which is returned 
+ * the STinG call blocks. 
+ * It also ensures this code runs with different 
+ * MODULA2 compilers.
+ *)
+
+CONST False = 0;
+CONST True  = 1;
+
+TYPE BOOL = [False..True];
+
+(* Driver access structure and functions *)
+CONST MAGIC = "STiKmagic";      (* Magic for DRV_LIST.magic *)
+CONST CJTAG = "STiK";
+
+TYPE 
+    DRV_HEADER = RECORD
+        Module : POINTER TO CHAR;
+        Author : POINTER TO CHAR
+    END (* RECORD *)
+
+END Transport.
+
+(* vim: set filetype=modula2: *)
diff --git a/src/transprt.i b/src/transprt.i
new file mode 100644
index 0000000..906c467
--- /dev/null
+++ b/src/transprt.i
@@ -0,0 +1,2 @@
+
+(* vim: set filetype=modula2: *)