Index: dll/win32/mpr/wnet.c
===================================================================
--- dll/win32/mpr/wnet.c	(revision 75423)
+++ dll/win32/mpr/wnet.c	(working copy)
@@ -2710,10 +2710,17 @@
  */
 DWORD WINAPI WNetDisconnectDialog( HWND hwnd, DWORD dwType )
 {
-    FIXME( "(%p, %08X): stub\n", hwnd, dwType );
+    DISCDLGSTRUCTW disconn_dlg;
+    NETRESOURCEW net_res;
 
-    SetLastError(WN_NO_NETWORK);
-    return WN_NO_NETWORK;
+    ZeroMemory(&disconn_dlg, sizeof(disconn_dlg));
+    ZeroMemory(&net_res, sizeof(net_res));
+
+    disconn_dlg.cbStructure = sizeof(disconn_dlg);
+    disconn_dlg.hwndOwner = hwnd;
+    net_res.dwType = dwType;
+
+    return WNetDisconnectDialog1W(&disconn_dlg);
 }
 
 /*********************************************************************
@@ -2732,10 +2739,11 @@
  */
 DWORD WINAPI WNetDisconnectDialog1W( LPDISCDLGSTRUCTW lpConnDlgStruct )
 {
-    FIXME( "(%p): stub\n", lpConnDlgStruct );
-
-    SetLastError(WN_NO_NETWORK);
-    return WN_NO_NETWORK;
+    HRESULT (WINAPI *pSHDisconnectNetDrives)(PVOID);
+    
+    HMODULE dll = LoadLibraryA("netplwiz.dll");
+    pSHDisconnectNetDrives = (void *)GetProcAddress(dll, "SHDisconnectNetDrives");
+    return pSHDisconnectNetDrives(NULL);
 }
 
 /*********************************************************************