diff --git a/reactos/iface/dll/defedf.c b/reactos/iface/dll/defedf.c
new file mode 100644
index 00000000000..1d316085689
--- /dev/null
+++ b/reactos/iface/dll/defedf.c
@@ -0,0 +1,280 @@
+/* $Id: defedf.c,v 1.1 1999/07/04 11:14:15 ea Exp $
+ * 
+ * reactos/iface/dll/defedf.c
+ *
+ * ReactOS Operating System
+ *
+ * Convert a *.def file for a PE image into an *.edf file,
+ * to build the PE image with a clean exports table.
+ *
+ * Written by EA (19990703)
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#ifndef MAX_PATH
+#define MAX_PATH _MAX_PATH
+#endif
+#include <string.h>
+
+#define INPUT_BUFFER_SIZE 1024
+
+static const char * SUFFIX_DEF = ".def";
+static const char * SUFFIX_EDF = ".edf";
+
+
+int
+Usage ( const char * ImageName )
+{
+	fprintf(
+		stderr,
+		"Usage: %s def_file [edf_file]\n",
+		ImageName
+		);
+	return EXIT_SUCCESS;
+}
+
+
+char *
+AddSuffix (
+	const char	* Prototype,
+	const char	* Suffix
+	)
+{
+	char	NewName [MAX_PATH];
+	char	* SuffixStart;
+
+	if (!Prototype) return NULL;
+	strcpy( NewName, Prototype );
+	SuffixStart = 
+		NewName
+		+ strlen(NewName)
+		- strlen(Suffix);
+	if (strcmp(SuffixStart,Suffix))
+	{
+		strcat(NewName, Suffix);
+	}
+	return strdup(NewName);
+}
+
+
+char *
+MakeEdfName (
+	const char	* NameDef,
+	const char	* NameEdf
+	)
+{
+	if (NULL == NameEdf)
+	{
+		char	NewName [MAX_PATH];
+		char	* Dot;
+
+		strcpy( NewName, NameDef );
+		Dot = strrchr( NewName, '.');
+		if (0 == strcmp(Dot, SUFFIX_DEF))
+		{
+			*Dot = '\0';
+		}
+		return AddSuffix( NewName, SUFFIX_EDF );
+	}
+	return AddSuffix( NameEdf, SUFFIX_EDF );
+}
+
+
+typedef
+enum 
+{
+	LineLibrary,
+	LineExports,
+	LineImports,
+	LineSymbol,
+	LineComment,
+	LineEmpty
+	
+} PARSING_EXIT_CODE;
+
+
+PARSING_EXIT_CODE
+ParseInput (
+	char * InputBuffer,
+	char * CleanName
+	)
+{
+	char	Buffer [MAX_PATH];
+	char	* r;
+	char	* w;
+
+	r = strrchr( InputBuffer, '\n' );
+	if (r) *r = '\0';
+printf("ParseInput(%s)\n",InputBuffer);
+	if (0 == strlen(InputBuffer))
+	{
+printf("LineEmpty\n");
+		return LineEmpty;
+	}
+	
+	for (	r = InputBuffer, w = Buffer;
+		*r && (*r != ' ') && (*r != '\t');
+		++r
+		);
+	if (*r == ';') 
+	{
+		strcpy( InputBuffer, r );
+printf("LineComment\n");
+		return LineComment;
+	}
+	r = strchr( InputBuffer, '@' );
+	if (r)
+	{
+		strcpy( CleanName, InputBuffer );
+		r = strchr( CleanName, '@' );
+		*r = '\0';
+printf("LineSymbol: \"%s\"=\"%s\"\n",InputBuffer,CleanName);
+		return LineSymbol;
+	}
+	/* can not recognize it; copy it verbatim */
+printf("LineComment\n");
+	return LineComment;
+}
+
+
+int
+DefEdf (
+	const char	* ImageName,
+	const char	* Def,
+	const char	* Edf
+	)
+{
+	FILE	* fDef;
+	FILE	* fEdf;
+	char	InputBuffer [INPUT_BUFFER_SIZE];
+
+	printf(
+		"%s --> %s\n",
+		Def,
+		Edf
+		);
+	fDef = fopen( Def, "r" );
+	if (!fDef)
+	{
+		fprintf(
+			stderr,
+			"%s: could not open \"%s\"\n",
+			ImageName,
+			Def
+			);
+		return EXIT_FAILURE;
+	}
+	fEdf = fopen( Edf, "w" );
+	if (!fEdf)
+	{
+		fprintf(
+			stderr,
+			"%s: could not create \"%s\"\n",
+			ImageName,
+			Edf
+			);
+		return EXIT_FAILURE;
+	}
+	while ( fgets( InputBuffer, sizeof InputBuffer, fDef ) )
+	{
+		char CleanName [MAX_PATH];
+
+		switch (ParseInput(InputBuffer,CleanName))
+		{
+		case LineLibrary:
+			fprintf(fEdf,"%s\n",InputBuffer);
+			break;
+			
+		case LineExports:
+			fprintf(fEdf,"EXPORTS\n");
+			break;
+			
+		case LineImports:
+			fprintf(fEdf,"IMPORTS\n");
+			break;			
+
+		case LineSymbol:
+			fprintf(
+				fEdf,
+				"%s=%s\n",
+				CleanName,
+				InputBuffer
+				);
+			break;
+
+		case LineComment:
+			fprintf(
+				fEdf,
+				"%s\n",
+				InputBuffer
+				);
+			break;
+			
+		case LineEmpty:
+			fprintf(
+				fEdf,
+				"\n"
+				);
+			break;
+		}
+	}
+	fclose(fDef);
+	fclose(fEdf);
+	return EXIT_SUCCESS;
+}
+
+
+int
+main(
+	int	argc,
+	char	* argv []
+	)
+{
+	char	* NameDef;
+	char	* NameEdf;
+	int	rv;
+
+
+	if ((argc != 2) && (argc != 3))
+	{
+		return Usage(argv[0]);
+	}
+	NameDef = AddSuffix(
+			argv [1],
+			SUFFIX_DEF
+			);
+	if (!NameDef)
+	{
+		fprintf(
+			stderr,
+			"%s: can not build the def_file name\n",
+			argv [0]
+			);
+		return EXIT_FAILURE;
+	}
+	NameEdf = MakeEdfName(
+			NameDef,
+			argv [2]
+			);
+	if (!NameEdf)
+	{
+		fprintf(
+			stderr,
+			"%s: can not build the edf_file name\n",
+			argv [0]
+			);
+		free(NameDef);
+		return EXIT_FAILURE;
+	}
+	rv = DefEdf(
+		argv [0],
+		NameDef,
+		NameEdf
+		);
+	free(NameDef);
+	free(NameEdf);
+	return rv;
+}
+
+/* EOF */
diff --git a/reactos/iface/dll/makefile b/reactos/iface/dll/makefile
new file mode 100644
index 00000000000..3f3db8e990f
--- /dev/null
+++ b/reactos/iface/dll/makefile
@@ -0,0 +1,20 @@
+# $Id: makefile,v 1.1 1999/07/04 11:14:15 ea Exp $
+#
+# ReactOS Operating System
+#
+# Generate:
+# - defedf
+#
+TARGET = defedf
+
+all: $(TARGET)$(EXE_POSTFIX)
+
+$(TARGET)$(EXE_POSTFIX): $(TARGET).c
+	$(CC) -g $(TARGET).c -o $(TARGET)$(EXE_POSTFIX)	
+
+clean:
+	- $(RM) $(TARGET)$(EXE_POSTFIX)
+
+.PHONY: all clean 
+
+include ../../rules.mak