+\S{faq-virtuallock}{Question} Couldn't Pageant use
+\cw{VirtualLock()} to stop private keys being written to disk?
+
+Unfortunately not. The \cw{VirtualLock()} function in the Windows
+API doesn't do a proper job: it may prevent small pieces of a
+process's memory from being paged to disk while the process is
+running, but it doesn't stop the process's memory as a whole from
+being swapped completely out to disk when the process is long-term
+inactive. And Pageant spends most of its time inactive.
+