exchange common event id 4999

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Found event log in my exchange server 2010. running on win2k8 r2.


Log name: Application

Source: MSExchange Common

Event ID: 4999

Level: error

User: N/A

Task Category: General

Keywords: Classic


Watson report about to be sent for process id: 7324, with parameters: E12, c-buddy-RTL-AMD64, 14.00.0639.021, mmc, M.E.Management.SystemManager, M.E.M.S.ExpressionCalculator.CalculateLambdaExpression, System.ArgumentException, 8341, 14.00.0639.021.
ErrorReportingEnabled: True


something is crashed? pls advise, thanks.

Shafaquat Ali


As per Microsoft, if System.ObjectDisposedException is in the parameters specified in the event description then this is caused by a bug in the software. See M970118 for information about the update required to fix this.

Also read this please.


Shafaquat Ali.

M.C.I.T.P Exchange 2007/2010, M.C.I.T.P Windows Server 2008, M.C.T.S OCS Server 2007 R2, URL: Phone: +923008210320

Troy Werelius

This sounds as though it could be an issue we discovered last year with NON-Unicode codepage properties within the messages. Much of this in our research came from older messages from previous versions of Exchange where the messaging client used in the past was not as diligent when injecting the data into Exchange.

This was supposed to have been fixed in RU1 and I presumed SP1 as well but it appears to still be rearing its ugly head. One of our Dev's directed me to this MS article that was born from our discovery early last year. in short the article states that “Exchange Server 2010 checks the codepage property of the message to determine the encoding that is used for non-Unicode properties of the recipient. If the codepage property has invalid values, the Exchange RPC Client Access service crashes.”

Anyway this is a known issue that is being worked on. Take a look at the bottom of this post and you will see that Brian Day referenced to this is being worked on and hopefully they will have a fix soon but they are not committing to any time line.

We fixed this last year in Lucid8's DigiScope product in order to support our 2010 Exchange customers so if your issue is urgent DigiScope can help, otherwise a patch from MS will be available at some point.

Troy Werelius

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