IIS trouble on Exchange server - Application Error - Event ID:1000 - System Log - Warning -WAS EventID 5139 generated at same time.

I have a Windows 2008 R2 DataCenter SP1 running Exchange 2010 SP3 Rollup 14.  IIS 7 is installed too.
Every 20 - 25 minutes I receive about 20 Event id: 1000 logged over a 3-4 minute span.  Then there's peace until the events get logged again in about 20 minutes.  When these application events get thrown I received warnings (5139) in the System log at the same time.

Log Name:      Application
Source:        Application Error
Date:          8/9/2016 12:01:34 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      HQVS06.mlg.us
Description:
Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7afa2
Faulting module name: KERNELBASE.dll, version: 6.1.7601.23455, time stamp: 0x573a54fc
Exception code: 0xe053534f
Fault offset: 0x000000000001a06d
Faulting process id: 0x%9
Faulting application start time: 0x%10
Faulting application path: %11
Faulting module path: %12
Report Id: %13
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2016-08-09T16:01:34.000000000Z" />
    <EventRecordID>1143679</EventRecordID>
    <Channel>Application</Channel>
    <Computer>HQVS06.mlg.us</Computer>
    <Security />
  </System>
  <EventData>
    <Data>w3wp.exe</Data>
    <Data>7.5.7601.17514</Data>
    <Data>4ce7afa2</Data>
    <Data>KERNELBASE.dll</Data>
    <Data>6.1.7601.23455</Data>
    <Data>573a54fc</Data>
    <Data>e053534f</Data>
    <Data>000000000001a06d</Data>
  </EventData>
</Event>
mlghelpAsked:
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Dan McFaddenSystems EngineerCommented:
Since the error appears to occur at a regular frequency, is there a monitoring system tapping the system at that time?

Also, here you read the following articles/threads?

1. https://social.technet.microsoft.com/Forums/en-US/89e41ca7-9095-448c-a72d-0d07e6c66207/exchange-2010-iis-not-working-event-id-5139?forum=exchangesvrsecuremessaginglegacy
2. https://technet.microsoft.com/en-us/library/cc735207(v=ws.10).aspx

Also, in the application pool that supports the site, under Advanced Properties, under section "Process Model"... what is the "Idle Time-out (minutes)" properties set to?  20 minutes?

Have you tried setting it to "0" which would disable the timeout process.  What may be happening is that there is no activity on the site for 20 minutes and IIS then shuts down the apppool.  The next in bound request causes IIS to start a new process for the apppool which could be throwing the errors as the process makes the initial request.

Dan
mlghelpAuthor Commented:
Dan,  Checked into all your suggestions with no luck.  We don't have a monitoring system but we do have a GFI Mailarchiver application installed on another server that keeps history of all our emails.

So I took a look into the Mail Archiver server , no errors logged.  But I did notice windows updates were available so I took the opportunity to install them and disable the Mail Archiver services.  I left then stopped for 1 hour and walla...no errors logged on Exchange.

I'm now working with GFI to resolve this issue as it appears their software is the cause.

Thanks Again for your reply.
Todd
Dan McFaddenSystems EngineerCommented:
Glad to hear that you isolated the culprit.

Dan
mlghelpAuthor Commented:
Issues resolved.  Turns out our Exchange Journaling Mailbox was chock full of oversize emails which GFI Mail Archiver could not pull over.  A tech from GFI enlarged a MAPI and EWS setting on their side to accept the larger emails, others (still to large) that were garbage emails still remained.  I loaded the Journaling Mailbox via Outlook (oddly enough OWA showed the number count of the large email, but not the actual emails) created a rule to permanently delete them and our Exchange logs are free of 1000 Application errors.

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mlghelpAuthor Commented:
Third party software involved in initial problem.
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