Index: wine-0.9.34/dlls/oleaut32/oleaut32.spec
===================================================================
--- wine-0.9.34.orig/dlls/oleaut32/oleaut32.spec	2007-07-31 19:02:31.000000000 +0200
+++ wine-0.9.34/dlls/oleaut32/oleaut32.spec	2007-08-01 15:26:08.000000000 +0200
@@ -124,7 +124,7 @@
 125 stdcall VarBoolFromStr(wstr long long ptr)
 126 stdcall VarBoolFromDisp(ptr long ptr)
 127 stdcall VarFormatCurrency(ptr long long long long long ptr)
-128 stub VarWeekdayName # stdcall (long long long long ptr)
+128 stdcall VarWeekdayName(long long long long ptr)
 129 stdcall VarMonthName(long long long ptr)
 130 stdcall VarUI1FromI2(long ptr)
 131 stdcall VarUI1FromI4(long ptr)
Index: wine-0.9.34/dlls/oleaut32/varformat.c
===================================================================
--- wine-0.9.34.orig/dlls/oleaut32/varformat.c	2007-07-31 19:02:31.000000000 +0200
+++ wine-0.9.34/dlls/oleaut32/varformat.c	2007-08-01 15:26:09.000000000 +0200
@@ -2498,3 +2498,69 @@
   }
   return S_OK;
 }
+
+/**********************************************************************
+ *              VarWeekdayName [OLEAUT32.129]
+ *
+ * Print the specified month as localized name.
+ *
+ * PARAMS
+ *  iWeekday  [I] day of week, 1..7, 0=system default?
+ *  fAbbrev   [I] 0 - full name, !0 - abbreviated name
+ *  iFirstDay [I] first day of week, 1..7, 0=system default?
+ *  dwFlags   [I] flag stuff. only VAR_CALENDAR_HIJRI possible.
+ *  pbstrOut  [O] Destination for month name
+ *
+ * RETURNS
+ *  Success: S_OK. pbstrOut contains the name.
+ *  Failure: E_INVALIDARG, if any parameter is invalid.
+ *           E_OUTOFMEMORY, if enough memory cannot be allocated.
+ */
+HRESULT WINAPI VarWeekdayName(INT iWeekday, INT fAbbrev, INT iFirstDay, ULONG dwFlags, BSTR *pbstrOut)
+{
+  DWORD localeValue;
+  INT size;
+
+  /* Windows XP oleaut32.dll doesn't allow iWekday==0, although MSDN says something different */
+  if ((iWeekday < 1)  || (iWeekday > 7))
+    return E_INVALIDARG;
+  if ((iFirstDay < 0)  || (iFirstDay > 7))
+    return E_INVALIDARG;
+  if (!pbstrOut)
+    return E_INVALIDARG;
+
+  if (dwFlags)
+    FIXME("Does not support dwFlags 0x%x, ignoring.\n", dwFlags);
+
+  if (iFirstDay==0)
+  {
+    DWORD firstDay;
+    size = GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_RETURN_NUMBER | LOCALE_IFIRSTDAYOFWEEK,
+                          (LPWSTR)&firstDay, sizeof(firstDay)/sizeof(WCHAR));
+    if (iFirstDay==0)
+      iFirstDay = firstDay + 2;
+  }
+
+  if (fAbbrev)
+    localeValue = LOCALE_SABBREVDAYNAME1 + (iWeekday + iFirstDay + 4)%7;
+  else
+    localeValue = LOCALE_SDAYNAME1 + (iWeekday + iFirstDay + 4)%7;
+
+  size = GetLocaleInfoW(LOCALE_USER_DEFAULT,localeValue, NULL, 0);
+  if (!size)
+  {
+    ERR("GetLocaleInfo 0x%x failed.\n", localeValue);
+    return HRESULT_FROM_WIN32(GetLastError());
+  }
+  *pbstrOut = SysAllocStringLen(NULL,size - 1);
+  if (!*pbstrOut)
+    return E_OUTOFMEMORY;
+  size = GetLocaleInfoW(LOCALE_USER_DEFAULT,localeValue, *pbstrOut, size);
+  if (!size)
+  {
+    ERR("GetLocaleInfo of 0x%x failed in 2nd stage?!\n", localeValue);
+    SysFreeString(*pbstrOut);
+    return HRESULT_FROM_WIN32(GetLastError());
+  }
+  return S_OK;
+}