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POASP.NET Application Goes to 500.21 ... until IIS Reset + Clear Tempoary ASP.NET Cache
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  1. POASP.NET Application Goes to 500.21 ... until IIS Reset + Clear Tempoary ASP.NET Cache
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    copied!<p>We're seeing an odd pattern in our QA Lab. We have two ASP.NET applications, each deployed on the same Windows 2008 SP2+ box. We have our App Pool running in a Domain Account, and set to never re-cycle. The same 1 App Pool is used by both applications. </p> <p>After several hours of running fine, new users surfing to a page in our application get the IIS7 Error Page, with a 500.21 error. </p> <p>If we do nothing but:</p> <p>1) IISRESET 2) Change folder to c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files and "rd" the 2 applications.</p> <p>And then surf to our web applications, all is fine.</p> <p>Then several hours later, however, the 500.21 errors return.</p> <p>What strikes me as odd is the seeming relationship between clearing the "Temporary ASP.NET Files" folders and the problem going away. I've a practice of clearing the "Temporary ASP.NET Files" folders when installing a new version of our application(s), but not otherwise.</p> <p>Does this relationship ring familiar to anyone? Is there some new-ish IIS7 feature at work here?</p> <p>Text of Error:</p> <p>Server Error in Application "DEFAULT WEB SITE/PAIS"<br> Internet Information Services 7.0<br> Error Summary<br> HTTP Error 500.21 - Internal Server Error<br> Handler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list<br> Detailed Error Information<br> Module IIS Web Core<br> Notification ExecuteRequestHandler<br> Handler PageHandlerFactory-Integrated<br> Error Code 0x8007000d<br> Requested URL <a href="http://localhost:80/PAIS/Admin.aspx" rel="nofollow noreferrer">http://localhost:80/PAIS/Admin.aspx</a> </p> <p>Physical Path C:\0_Georgia\GA_IS_100142\PortfolioArchiveImageServer\Admin.aspx<br> Logon Method Anonymous<br> Logon User Anonymous<br> Most likely causes:<br> • ASP.NET is not installed or incompletely installed.<br> • A configuration typographical error occured.<br> • Unfavourable pre-condition evaluation exists.<br> Things you can try:<br> • If ManagedPipelineHandler is missing, ensure that:<br> o ManagedEngine is in .<br> o ManagedPipelineHandler is in , with correct pre-conditions.<br> • Install ASP.NET.<br> • Ensure all system.webServer/handlers@modules are in system.webServer/modules@name.<br> • Review pre-conditions in the and sections.<br> Links and More Information IIS core does not recognize the module.<br> View more information » </p> <p>Thanks in advance,</p> <p>Howard Hoffman</p>
 

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