kernel32: Return some fake data in FindActCtxSectionStringW.

dlls/kernel32/actctx.c

@@ -177,8 +177,37 @@ BOOL WINAPI FindActCtxSectionStringW(DWORD dwFlags, const GUID* lpExtGuid,
 {
   FIXME("%08lx %s %lu %s %p\n", dwFlags, debugstr_guid(lpExtGuid),
         ulId, debugstr_w(lpSearchStr), pInfo);
-  SetLastError( ERROR_CALL_NOT_IMPLEMENTED);
+
+  if (lpExtGuid)
+  {
+    FIXME("expected lpExtGuid == NULL\n");
+    SetLastError(ERROR_INVALID_PARAMETER);
     return FALSE;
+  }
+
+  if (dwFlags & ~FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX)
+  {
+    FIXME("unknown dwFlags %08lx\n", dwFlags);
+    SetLastError(ERROR_INVALID_PARAMETER);
+    return FALSE;
+  }
+
+  if (!pInfo || pInfo->cbSize < sizeof (ACTCTX_SECTION_KEYED_DATA))
+  {
+    SetLastError(ERROR_INVALID_PARAMETER);
+    return FALSE;
+  }
+
+  pInfo->ulDataFormatVersion = 1;
+  pInfo->lpData = NULL;
+  pInfo->lpSectionGlobalData = NULL;
+  pInfo->ulSectionGlobalDataLength = 0;
+  pInfo->lpSectionBase = NULL;
+  pInfo->ulSectionTotalLength = 0;
+  pInfo->hActCtx = ACTCTX_FAKE_HANDLE;
+  pInfo->ulAssemblyRosterIndex = 0;
+
+  return TRUE;
 }
 
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