diff --git a/dlls/dpnet/Makefile.in b/dlls/dpnet/Makefile.in
index 541e104c64a..bcf07772e39 100644
--- a/dlls/dpnet/Makefile.in
+++ b/dlls/dpnet/Makefile.in
@@ -2,6 +2,8 @@ MODULE    = dpnet.dll
 IMPORTLIB = dpnet
 IMPORTS   = dxguid uuid ole32 advapi32 ws2_32
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	address.c \
 	client.c \
diff --git a/dlls/dpnet/address.c b/dlls/dpnet/address.c
index 0bfa2bca037..6aa62a97785 100644
--- a/dlls/dpnet/address.c
+++ b/dlls/dpnet/address.c
@@ -19,7 +19,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>
 
@@ -30,7 +29,6 @@
 #include "winuser.h"
 #include "objbase.h"
 
-#include "wine/unicode.h"
 #include "wine/debug.h"
 
 #include "dpnet_private.h"
@@ -417,7 +415,7 @@ static HRESULT WINAPI IDirectPlay8AddressImpl_GetComponentByIndex(IDirectPlay8Ad
 
     entry = This->components[dwComponentID];
 
-    namesize = strlenW(entry->name);
+    namesize = lstrlenW(entry->name);
     if(*pdwBufferSize < entry->size || *pdwNameLen < namesize)
     {
         WARN("Buffer too small\n");
@@ -493,7 +491,7 @@ static HRESULT WINAPI IDirectPlay8AddressImpl_AddComponent(IDirectPlay8Address *
             }
             break;
         case DPNA_DATATYPE_STRING:
-            if (((strlenW((WCHAR*)lpvData)+1)*sizeof(WCHAR)) != dwDataSize)
+            if (((lstrlenW((WCHAR*)lpvData)+1)*sizeof(WCHAR)) != dwDataSize)
             {
                 WARN("Invalid STRING size, returning DPNERR_INVALIDPARAM\n");
                 return DPNERR_INVALIDPARAM;
diff --git a/dlls/dpnet/client.c b/dlls/dpnet/client.c
index ea491ef7432..e7024e1c013 100644
--- a/dlls/dpnet/client.c
+++ b/dlls/dpnet/client.c
@@ -19,7 +19,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>
 
diff --git a/dlls/dpnet/dpnet_main.c b/dlls/dpnet/dpnet_main.c
index cc80ebc07ab..445374cabb8 100644
--- a/dlls/dpnet/dpnet_main.c
+++ b/dlls/dpnet/dpnet_main.c
@@ -19,7 +19,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>
 
diff --git a/dlls/dpnet/dpnet_private.h b/dlls/dpnet/dpnet_private.h
index 2e72360c899..9458a5123aa 100644
--- a/dlls/dpnet/dpnet_private.h
+++ b/dlls/dpnet/dpnet_private.h
@@ -21,14 +21,9 @@
 #ifndef __WINE_DPNET_PRIVATE_H
 #define __WINE_DPNET_PRIVATE_H
 
-#ifndef __WINE_CONFIG_H
-# error You must include config.h to use this header
-#endif
-
 #include "wine/heap.h"
 #include <wine/list.h>
 #include "winsock2.h"
-#include "wine/unicode.h"
 
 #include "dplay8.h"
 #include "dplobby8.h"
@@ -159,7 +154,7 @@ static inline WCHAR *heap_strdupW( const WCHAR *src )
 {
     WCHAR *dst;
     if (!src) return NULL;
-    if ((dst = heap_alloc( (strlenW( src ) + 1) * sizeof(WCHAR) ))) strcpyW( dst, src );
+    if ((dst = heap_alloc( (lstrlenW( src ) + 1) * sizeof(WCHAR) ))) lstrcpyW( dst, src );
     return dst;
 }
 
diff --git a/dlls/dpnet/lobbiedapp.c b/dlls/dpnet/lobbiedapp.c
index d041e63624f..d58571aca87 100644
--- a/dlls/dpnet/lobbiedapp.c
+++ b/dlls/dpnet/lobbiedapp.c
@@ -19,7 +19,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>
 
diff --git a/dlls/dpnet/peer.c b/dlls/dpnet/peer.c
index 3e3cd9b770f..f935b2a3133 100644
--- a/dlls/dpnet/peer.c
+++ b/dlls/dpnet/peer.c
@@ -21,7 +21,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>
 
diff --git a/dlls/dpnet/server.c b/dlls/dpnet/server.c
index 46d5fe2183d..977771697ac 100644
--- a/dlls/dpnet/server.c
+++ b/dlls/dpnet/server.c
@@ -19,7 +19,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>
 
diff --git a/dlls/dpnet/threadpool.c b/dlls/dpnet/threadpool.c
index 7e84a5afbb9..22d871b40b4 100644
--- a/dlls/dpnet/threadpool.c
+++ b/dlls/dpnet/threadpool.c
@@ -20,7 +20,6 @@
  *
  */
 
-#include "config.h"
 
 #include <stdarg.h>