diff --git a/src/plugins/hllapi/environ.bat b/src/plugins/hllapi/environ.bat
new file mode 100644
index 0000000..c77f38a
--- /dev/null
+++ b/src/plugins/hllapi/environ.bat
@@ -0,0 +1,6 @@
+@echo off
+
+set VC=C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC
+set WINSDK=C:\Program Files (x86)\Windows Kits\8.1
+set PATH=%PATH%;"%VC%\bin";"%WINSDK%\bin\x86\"
+
diff --git a/src/plugins/hllapi/idlcomp.bat b/src/plugins/hllapi/idlcomp.bat
new file mode 100644
index 0000000..fe0bdce
--- /dev/null
+++ b/src/plugins/hllapi/idlcomp.bat
@@ -0,0 +1,3 @@
+@echo off
+
+midl.exe /I "%WINSDK%\Include\um" /I "%WINSDK%\Include\shared" /cpp_cmd "cl.exe" pw3270.idl
diff --git a/src/plugins/hllapi/pw3270.idl b/src/plugins/hllapi/pw3270.idl
new file mode 100644
index 0000000..b05f3f9
--- /dev/null
+++ b/src/plugins/hllapi/pw3270.idl
@@ -0,0 +1,53 @@
+// This is the type library for libhllapi.dll
+
+//
+// References:
+//
+// http://support.microsoft.com/kb/189133
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa367300(v=vs.85).aspx
+//
+[
+      // Use GUIDGEN.EXE to create the UUID that uniquely identifies
+      // this library on the user's system. NOTE: This must be done!!
+      uuid(4CC73F7D-5C10-4313-8FFD-F01999A44656),
+
+      // This helpstring defines how the library will appear in the
+      // References dialog of VB.
+      helpstring("PW3270 HLLAPI typelib"),
+
+      // Assume standard English locale.
+      lcid(0x0409),
+
+      // Assign a version number to keep track of changes.
+      version(5.0)
+]
+
+library HLLAPI
+{
+
+      // Now define the module that will "declare" your C functions.
+      [
+            helpstring("HLLAPI calls for pw3270"),
+
+            version(5.0),
+
+            // Give the name of your DLL here.
+            dllname("libhllapi.dll")
+      ]
+
+      module hllApiFunctions
+      {
+            [
+                  helpstring("Initialize pw3270´s instance."),
+                  entry("hllapi_init")
+            ]
+            // The [in], [out], and [in, out] keywords tell the Automation
+            // client which direction parameters need to be passed. Some
+            // calls can be optimized if a function only needs a parameter
+            // to be passed one-way.
+            DWORD __stdcall hllapi_init( [in] LPSTR mode);
+
+
+      } // End of Module
+
+}; // End of Library
--
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