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copied!<p>The debugger will be your friend here. Step through the shutdown until you get stuck. That'll be the best bet.</p> <p>But... assuming for some reason the debugger is affecting the behaviour, or can't be used for some other reason:</p> <ul> <li><p>A few earlier replies suggest using FastMM. This has been the default memory manager for delphi since D2006. You can try flipping on the options to <a href="http://edn.embarcadero.com/article/33416#16ReportingMemoryLeaks" rel="nofollow noreferrer">report memory leaks</a>... but that'll only work after you've finished shutting down the process, which is what isn't working. :) So I doubt it will help you much in this case. The full version of <a href="http://sourceforge.net/projects/fastmm/" rel="nofollow noreferrer">FastMM</a>, as opposed to the standard one packaged with delphi, might have some other helpful features... But I can't recall any that would help here.</p></li> <li><p>To inspect your app while it's stuck, you could try the <a href="http://technet.microsoft.com/en-us/sysinternals/default.aspx" rel="nofollow noreferrer">sysinternals tools</a>, like Process Explorer & Process Monitor. Process Monitor may show you if it's choking on any ACCESS_DENIED errors, etc, and the stack trace at the time of the error. <a href="http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx" rel="nofollow noreferrer">Process Explorer</a> could be especially useful, by listing all the handles your process is still holding open, and allowing you to view the stack of all its living threads. A familiar function or two, in the stack traces of any hung threads, may send you hunting in the right area.</p></li> </ul>

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