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    <p>Personally, I build my own mechanism to kick off self update process when my application timestamp is out of sync with the server. Not too difficult, but it's not a simple task.</p> <p>By the way, for Delphi you can use some thirdparty help:</p> <p><a href="http://www.tmssoftware.com/site/wupdate.asp" rel="nofollow noreferrer">http://www.tmssoftware.com/site/wupdate.asp</a></p> <p>UPDATED:</p> <p>For my implementation:</p> <p>MyApp.EXE will run in 3 different modes</p> <ol> <li><p>MyApp.EXE without any argument. This will start the application typically.</p> <p>1.1 The very first thing it does is to validate its own file-time with the server.</p> <p>1.2 If update is required then it will download the updated file to the file named "MyApp-YYYY-MM-DD-HH-MM-SS.exe"</p> <p>1.3 Then it invoke "MyApp-YYYY-MM-DD-HH-MM-SS.exe" with command argument </p> <pre><code>MyApp-YYYY-MM-DD-HH-MM-SS.exe --update MyApp.EXE </code></pre> <p>1.4 Terminate this application.</p> <p>1.5 If there is no update required then the application will start normally from 1.1</p></li> <li><p>MyApp.EXE --update "FILENAME".</p> <p>2.1 Try copying itself to "FILENAME" every 100ms until success.</p> <p>2.2 Invoke "FILENAME" when it success</p> <p>2.3 Invoke "FILNAME --delete MyApp-YYYY-MM-DD-HH-MM-SS.exe" to delete itself.</p> <p>2.4 Terminate</p></li> <li><p>MyApp.EXE --delete "FILENAME"</p> <p>3.1 Try deleting the file "FILENAME" every 500ms until success.</p> <p>3.2 Terminate</p></li> </ol> <p>I've already been using this scheme for my application for 7 years and it works well. It could be quite painful to debug when things goes wrong since the steps involve many processes. I suggest you make a lot of trace logging to allow simpler trouble-shooting.</p> <p>Good Luck</p>
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    1. POIs it possible to deploy a native Delphi application with ClickOnce
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    1. COThat is exactly what I ended up doing.
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    2. COI won't mind some upvote then ;)
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