<p></p>
<p><b>@j4yk</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/485#discussion_r407103373">platforms/win32/plugins/FilePlugin/sqWin32FilePrims.c</a>:</p>
<pre style='color:#555'>>    DWORD dwReallyWritten;
-  WriteFile((HANDLE)(h-1), (LPVOID) ptr, count*sz, &dwReallyWritten, NULL);
-  return (size_t) (dwReallyWritten / sz);
+  size_t totalToWrite = count * sz;
+  squeakFileOffsetType position;
+
+  position = sqImageFilePosition(h);
+  while (reallyWritten != totalToWrite) {
+    DWORD toWrite = (totalToWrite - reallyWritten) > (size_t) MAX_DWORD ? MAX_DWORD : totalToWrite - reallyWritten;
+    BOOL ret = WriteFile((HANDLE)(h - 1), (LPVOID)((sqInt)ptr + (sqInt) reallyWritten), toWrite, &dwReallyWritten, NULL);
+    reallyWritten += dwReallyWritten;
+
+    if (!ret | dwReallyWritten != toWrite) {
</pre>
<p>See above.</p>

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