diff --git a/ANSI.c b/ANSI.c
index 8b2b991..a57574e 100644
--- a/ANSI.c
+++ b/ANSI.c
@@ -69,94 +69,14 @@
 #include <windows.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <ImageHlp.h>
 #include <tlhelp32.h>
 #include "injdll.h"
+#include "debugstr.h"
 
 #define lenof(array) (sizeof(array)/sizeof(*(array)))
 
 #define isdigit(c) ('0' <= (c) && (c) <= '9')
 
-// ========== Auxiliary debug function
-
-#define MYDEBUG 0			// no debugging
-//#define MYDEBUG 1			// use OutputDebugString
-//#define MYDEBUG 2			// use %temp%\ansicon.log
-
-#if (MYDEBUG > 0)
-#if (MYDEBUG > 1)
-char tempfile[MAX_PATH];
-#endif
-void DEBUGSTR( LPTSTR szFormat, ... )	// sort of OutputDebugStringf
-{
-  TCHAR szBuffer[1024], szEscape[1024];
-  va_list pArgList;
-  va_start( pArgList, szFormat );
-  _vsnwprintf( szBuffer, lenof(szBuffer), szFormat, pArgList );
-  va_end( pArgList );
-
-  szFormat = szBuffer;
-  if (*szFormat == '\\')
-  {
-    BOOL first = TRUE;
-    LPTSTR pos = szEscape;
-    while (*++szFormat != '\0' && pos < szEscape + lenof(szEscape) - 4)
-    {
-      if (*szFormat < 32)
-      {
-	*pos++ = '\\';
-	switch (*szFormat)
-	{
-	  case '\b': *pos++ = 'b'; break;
-	  case '\t': *pos++ = 't'; break;
-	  case '\r': *pos++ = 'r'; break;
-	  case '\n': *pos++ = 'n'; break;
-	  case	27 : *pos++ = 'e'; break;
-	  default:
-	    pos += wprintf( pos, L"%.*o",
-			    (szFormat[1] >= '0' && szFormat[1] <= '7') ? 3 : 1,
-			    *szFormat );
-	}
-      }
-      else if (*szFormat == '"')
-      {
-	if (first)
-	  first = FALSE;
-	else if (szFormat[1] == '\0')
-	  ;
-	else
-	  *pos++ = '\\';
-	*pos++ = '"';
-      }
-      else
-      {
-	*pos++ = *szFormat;
-      }
-    }
-    *pos = '\0';
-    szFormat = szEscape;
-  }
-#if (MYDEBUG > 1)
-  {
-  FILE* file = fopen( tempfile, "at" ); // _fmode might be binary
-  if (file != NULL)
-  {
-    fwprintf( file, L"%s\n", szFormat );
-    fclose( file );
-  }
-  }
-#else
-  OutputDebugString( szFormat );
-#endif
-}
-#else
-#if defined(_MSC_VER) && _MSC_VER <= 1400
-void DEBUGSTR() { }
-#else
-#define DEBUGSTR(...)
-#endif
-#endif
-
 // ========== Global variables and constants
 
 // Macro for adding pointers/DWORDs together without C arithmetic interfering
diff --git a/ansicon.c b/ansicon.c
index 105d68a..42da6a2 100644
--- a/ansicon.c
+++ b/ansicon.c
@@ -64,6 +64,7 @@
 #include <ctype.h>
 #include <io.h>
 #include "injdll.h"
+#include "debugstr.h"
 
 #define lenof(array) (sizeof(array)/sizeof(*(array)))
 
diff --git a/debugstr.c b/debugstr.c
new file mode 100644
index 0000000..244cbdb
--- /dev/null
+++ b/debugstr.c
@@ -0,0 +1,81 @@
+/*
+  debugstr.c - Auxiliary debug functionality.
+*/
+
+#ifndef UNICODE
+# define UNICODE
+#endif
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ImageHlp.h>
+#include "debugstr.h"
+
+#define lenof(array) (sizeof(array)/sizeof(*(array)))
+
+#if (MYDEBUG > 0)
+void DEBUGSTR( LPTSTR szFormat, ... ) // sort of OutputDebugStringf
+{
+  TCHAR szBuffer[1024], szEscape[1024];
+  va_list pArgList;
+  va_start( pArgList, szFormat );
+  _vsnwprintf( szBuffer, lenof(szBuffer), szFormat, pArgList );
+  va_end( pArgList );
+
+  szFormat = szBuffer;
+  if (*szFormat == '\\')
+  {
+    BOOL first = TRUE;
+    LPTSTR pos = szEscape;
+    while (*++szFormat != '\0' && pos < szEscape + lenof(szEscape) - 4)
+    {
+      if (*szFormat < 32)
+      {
+  *pos++ = '\\';
+  switch (*szFormat)
+  {
+    case '\b': *pos++ = 'b'; break;
+    case '\t': *pos++ = 't'; break;
+    case '\r': *pos++ = 'r'; break;
+    case '\n': *pos++ = 'n'; break;
+    case  27 : *pos++ = 'e'; break;
+    default:
+      pos += wprintf( pos, L"%.*o",
+          (szFormat[1] >= '0' && szFormat[1] <= '7') ? 3 : 1,
+          *szFormat );
+  }
+      }
+      else if (*szFormat == '"')
+      {
+  if (first)
+    first = FALSE;
+  else if (szFormat[1] == '\0')
+    ;
+  else
+    *pos++ = '\\';
+  *pos++ = '"';
+      }
+      else
+      {
+  *pos++ = *szFormat;
+      }
+    }
+    *pos = '\0';
+    szFormat = szEscape;
+  }
+#if (MYDEBUG > 1)
+  {
+  FILE* file = fopen( tempfile, "at" ); // _fmode might be binary
+  if (file != NULL)
+  {
+    fwprintf( file, L"%s\n", szFormat );
+    fclose( file );
+  }
+  }
+#else
+  OutputDebugString( szFormat );
+#endif
+}
+#endif
diff --git a/debugstr.h b/debugstr.h
new file mode 100644
index 0000000..a366167
--- /dev/null
+++ b/debugstr.h
@@ -0,0 +1,18 @@
+// ========== Auxiliary debug function
+
+#define MYDEBUG 0     // no debugging
+//#define MYDEBUG 1     // use OutputDebugString
+//#define MYDEBUG 2     // use %temp%\ansicon.log
+
+#if (MYDEBUG > 0)
+#   if (MYDEBUG > 1)
+    char tempfile[MAX_PATH];
+#   endif
+    void DEBUGSTR( LPTSTR szFormat, ... );
+#else
+#   if defined(_MSC_VER) && _MSC_VER <= 1400
+      void DEBUGSTR() { }
+#   else
+#     define DEBUGSTR(...)
+#   endif
+#endif
diff --git a/makefile b/makefile
index 605f380..6fbefc2 100644
--- a/makefile
+++ b/makefile
@@ -32,19 +32,19 @@ ansicon64: x64 x64/ansicon.exe x64/ANSI64.dll x64/ANSI32.dll x64/ANSI-LLW.exe
 x86:
 	mkdir x86
 
-x86/ansicon.exe: x86/ansicon.o x86/proctype.o x86/injdll32.o x86/ansiconv.o
+x86/ansicon.exe: x86/ansicon.o x86/debugstr.o x86/proctype.o x86/injdll32.o x86/ansiconv.o
 	$(CC) -m32 $+ -s -o $@
 
-x86/ANSI32.dll: x86/ANSI.o x86/proctype.o x86/injdll32.o x86/ansiv.o
+x86/ANSI32.dll: x86/ANSI.o x86/debugstr.o x86/proctype.o x86/injdll32.o x86/ansiv.o
 	$(CC) -m32 $+ -s -o $@ -mdll -Wl,-shared
 
 x64:
 	mkdir x64
 
-x64/ansicon.exe: x64/ansicon.o x64/proctype.o x64/injdll64.o x64/injdll32.o x64/ansiconv.o
+x64/ansicon.exe: x64/ansicon.o x64/debugstr.o x64/proctype.o x64/injdll64.o x64/injdll32.o x64/ansiconv.o
 	$(CC) -m64 $+ -s -o $@
 
-x64/ANSI64.dll: x64/ANSI.o x64/proctype.o x64/injdll64.o x64/injdll32.o x64/ansiv.o
+x64/ANSI64.dll: x64/ANSI.o x64/debugstr.o x64/proctype.o x64/injdll64.o x64/injdll32.o x64/ansiv.o
 	$(CC) -m64 $+ -s -o $@ -mdll -Wl,-shared
 
 x64/ANSI32.dll: x86/ANSI32.dll