Windows update MS15-061 / KB3057839 breaks PuTTY configuration dialogue box on Vista

Owen Dunn asked on

I'm part of the PuTTY development team.

We've had several reports in the past day that the recently deployed Windows update MS15-061 / KB3057839 causes the PuTTY configuration window not to be visible when PuTTY is started on Windows Vista, and that uninstalling that update makes PuTTY work again.  How do we bring this to Microsoft's attention so they can either fix what they've changed with that update or let us know what PuTTY should do differently so as not to be affected?


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