diff --git a/pykd/dbgcmd.h b/pykd/dbgcmd.h
new file mode 100644
index 0000000..9b361e9
--- /dev/null
+++ b/pykd/dbgcmd.h
@@ -0,0 +1,86 @@
+#pragma once
+
+#include <string>
+#include <map>
+#include "pyaux.h"
+
+/////////////////////////////////////////////////////////////////////////////////
+
+std::string
+dbgCommand( const std::wstring &command );
+
+template <ULONG status>
+void
+setExecutionStatus()
+{
+    HRESULT     hres;
+
+    hres = dbgExt->control->SetExecutionStatus( status );
+
+    if ( FAILED( hres ) )
+        throw DbgException( "IDebugControl::SetExecutionStatus failed" );
+
+    ULONG    currentStatus;
+
+    do {
+        
+        {
+            PyThread_StateRestore pyThreadRestore;
+            hres = dbgExt->control->WaitForEvent( 0, INFINITE );
+        }
+
+        if ( FAILED( hres ) )
+        {
+            if (E_UNEXPECTED == hres)
+                throw WaitEventException();
+
+            throw  DbgException( "IDebugControl::WaitForEvent  failed" );
+        }
+
+        hres = dbgExt->control->GetExecutionStatus( &currentStatus );
+
+        if ( FAILED( hres ) )
+            throw  DbgException( "IDebugControl::GetExecutionStatus  failed" ); 
+
+    } while( currentStatus != DEBUG_STATUS_BREAK && currentStatus != DEBUG_STATUS_NO_DEBUGGEE );
+
+}
+
+/////////////////////////////////////////////////////////////////////////////////
+
+class dbgExtensionClass {
+
+public:
+
+    dbgExtensionClass() :
+        m_handle( NULL )
+        {}
+    
+    dbgExtensionClass( const char* path );
+    
+    ~dbgExtensionClass();
+    
+    std::string
+    call( const std::string &command, const std::string param );
+
+    std::string
+    print() const;
+    
+private:
+
+    ULONG64         m_handle;  
+	std::string     m_path;
+};
+
+
+/////////////////////////////////////////////////////////////////////////////////
+
+ULONG64
+evaluate( const std::string  &expression );
+    
+/////////////////////////////////////////////////////////////////////////////////
+
+void
+breakin();
+
+/////////////////////////////////////////////////////////////////////////////////
\ No newline at end of file