diff --git a/programs/dxdiag/En.rc b/programs/dxdiag/En.rc
new file mode 100644
index 0000000..79bec3a
--- /dev/null
+++ b/programs/dxdiag/En.rc
@@ -0,0 +1,13 @@
+#include "dxdiag_res.h"
+
+STRINGTABLE
+{
+    DXDIAG_TITLE, "DirectX Diagnostic Tool"
+    DXDIAG_MESSAGE_HELP,
+"Usage: dxdiag [/x OUTFILE] [/t OUTFILE] [/whql:{on|off}]\n\
+\n\
+/x outfile\tThis option saves dxdiag information as an XML file.\n\
+/t outfile\tThis option saves dxdiag information as text.\n\
+/whql:{on|off}\tAllow/deny dxdiag check for Microsoft WHQL signatures \
+(unimplemented)\n"
+}
diff --git a/programs/dxdiag/Makefile.in b/programs/dxdiag/Makefile.in
index a8dd0d9..711d0da 100644
--- a/programs/dxdiag/Makefile.in
+++ b/programs/dxdiag/Makefile.in
@@ -5,11 +5,14 @@ SRCDIR    = @srcdir@
 VPATH     = @srcdir@
 MODULE    = dxdiag.exe
 APPMODE   = -mwindows -municode
-IMPORTS   = kernel32
+IMPORTS   = kernel32 user32
 
 C_SRCS = \
 	main.c
 
+RC_SRCS = \
+	En.rc
+
 @MAKE_PROG_RULES@
 
 @DEPENDENCIES@  # everything below this line is overwritten by make depend
diff --git a/programs/dxdiag/dxdiag_res.h b/programs/dxdiag/dxdiag_res.h
new file mode 100644
index 0000000..3b75a66
--- /dev/null
+++ b/programs/dxdiag/dxdiag_res.h
@@ -0,0 +1,8 @@
+#ifndef DXDIAG_RES_H
+#define DXDIAG_RES_H
+
+#define DXDIAG_TITLE                                             1
+
+#define DXDIAG_MESSAGE_HELP                                    100
+
+#endif
diff --git a/programs/dxdiag/main.c b/programs/dxdiag/main.c
index 4e73b4b..7511659 100644
--- a/programs/dxdiag/main.c
+++ b/programs/dxdiag/main.c
@@ -22,6 +22,7 @@
 #include <windows.h>
 #include "wine/debug.h"
 #include "wine/unicode.h"
+#include "dxdiag_res.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(dxdiag);
 
@@ -33,6 +34,21 @@ WINE_DEFAULT_DEBUG_CHANNEL(dxdiag);
     quotes are optional around the filename, even if it contains spaces.
 */
 
+/*
+ * Wrapper for LoadString() which handles errors.
+ */
+static LPCWSTR DxDiag_LoadString(UINT id) {
+    static const WCHAR failed[] = { 'F', 'a', 'i', 'l', 'e', 'd', '!', '\0' };
+    LPCWSTR ret;
+
+    if (!LoadStringW(GetModuleHandleW(NULL), id, (WCHAR*)&ret, 0)) {
+        WINE_FIXME("LoadString failed with %u, last error %u\n", id, GetLastError());
+        return failed;
+    }
+
+    return ret;
+}
+
 static BOOL ProcessCommandLine(const WCHAR *s)
 {
     WCHAR outfile[MAX_PATH+1];
@@ -77,8 +93,10 @@ static BOOL ProcessCommandLine(const WCHAR *s)
             break;
         }
     }
-    if (opt_help)
-        WINE_FIXME("help unimplemented\n");
+    if (opt_help) {
+        MessageBoxW(NULL, DxDiag_LoadString(DXDIAG_MESSAGE_HELP),
+                    DxDiag_LoadString(DXDIAG_TITLE), MB_OK);
+    }
     if (opt_t)
         WINE_FIXME("/t unimplemented\n");
     if (opt_x)