I'm installing Exchange 2007 SP3 onto Server 2008 R2. I have run this install in compatibility mode and in normal install mode with the same results. Error code 3221684346: The data area passed to a system call is too small. I am installing directly from the SP3 files, this is not an upgrade. What do I have to do to get this to work? [2/15/2011 7:24:18 AM] [2] Interpreting line <CreateSecureKey:MSExchangeIS\ParametersPrivate> -- ID:31259 -- [2/15/2011 7:24:18 AM] [2] CInsParser::ScProcessLine (f:\08.03.0083\sources\dev\admin\src\libs\exsetup\hiddenw1.cxx:1199) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Processing file 'C:\Exchange Server\Setup\data\mdb_reg.ins', at or near line 77 (CreateSecureKey:MSExchangeIS\ParametersPrivate) -- ID:31111 -- CInsParser::ScProcessLine (f:\08.03.0083\sources\dev\admin\src\libs\exsetup\hiddenw1.cxx:488) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Registry file name: 'C:\Exchange Server\Setup\data\mdb_reg.ins' CRegistryManager::ScProcessFile (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\tools\regmgr.cxx:125) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Filename = 'C:\Exchange Server\Setup\data\mdb_reg' CBaseAtom::ScRunRegistryFile (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:1379) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Leaving CBaseAtom(Information Store Service)::ScRunRegistryFile [2/15/2011 7:24:18 AM] [2] Filename = 'C:\Exchange Server\Setup\data\mdb_reg' CBaseAtom::ScAddRegistryKeys (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:1249) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Leaving CBaseAtom(Information Store Service)::ScAddRegistryKeys [2/15/2011 7:24:18 AM] [2] CAtomBaseMDB::ScAddRegistryKeys (f:\08.03.0083\sources\dev\admin\src\udog\exsetdata\components\server\a_basemdb.cxx:132) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Leaving CAtomBaseMDB::ScAddRegistryKeys [2/15/2011 7:24:18 AM] [2] CBaseAtom::ScAdd (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:639) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Leaving CBaseAtom(Information Store Service)::ScAdd [2/15/2011 7:24:18 AM] [2] Service = 'MSExchangeIS' CBaseServiceAtom::ScAdd (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\basesvcatom.cxx:203) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Leaving CBaseServiceAtom(Information Store Service)::ScAdd [2/15/2011 7:24:18 AM] [2] mode = 'Install' (61953) CBaseAtom::ScSetup (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:535) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] ScSetupAtom (f:\08.03.0083\sources\dev\admin\src\udog\exsetdata\exsetds.cxx:897) Error code 0XC007007A (122): The data area passed to a system call is too small. [2/15/2011 7:24:18 AM] [2] Leaving ScSetupAtom [2/15/2011 7:24:18 AM] [2] [ERROR] An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [2/15/2011 7:24:18 AM] [1] The following 1 error(s) occurred during task execution: [2/15/2011 7:24:18 AM] [1] 0. ErrorRecord: An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [2/15/2011 7:24:18 AM] [1] 0. ErrorRecord: Microsoft.Exchange.Management.Deployment.ExsetdataException: An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [2/15/2011 7:24:18 AM] [1] [ERROR] An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [2/15/2011 7:24:18 AM] [1] Setup is halting task execution because of one or more errors in a critical task. [2/15/2011 7:24:18 AM] [1] Finished executing component tasks. [2/15/2011 7:24:18 AM] [1] Ending processing. [2/15/2011 7:42:08 AM] [0] End of Setup [2/15/2011 7:42:08 AM] [0] **********************************************

I would probably rebuild the host machine. The Exchange installation should occur without any issues, and where a problem does occur that can be an indication of a more widespread problem. Rebuild the machine, reinstall the prerequisites and try again. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources | In the UK? Hire Me.

Hi, Any updates on this issue? Do you follow Simon’s suggestion to rebuild the host machine? Here are some related documents for you: What's New in Exchange Server 2007 SP3 http://technet.microsoft.com/en-us/library/ff607226(EXCHG.80).aspx Release Notes for Exchange Server 2007 SP3 http://technet.microsoft.com/en-us/library/ff607233(EXCHG.80).aspx Thanks, EvanPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Agree with these guys, rather than wasting time in troubleshooting it, you should reformat the machine and start the installation again.Gulab | MCTS-MCITP: 2010 | MCTS-MCITP: 2007 | MCC | Skype: gulab.mallah

I would probably rebuild the host machine. The Exchange installation should occur without any issues, and where a problem does occur that can be an indication of a more widespread problem. Rebuild the machine, reinstall the prerequisites and try again. Simon. Simon Butler, Exchange MVP Blog | Exchange Resources | In the UK? Hire Me. Hello Poster. I am having the same issue, however it is most likely NOT a host box problem. The above advice is not a fix. I have 3 servers that are cloned with the same setup. 2 were fixed by doing the Vista compatibility trick, this one gave a different error (which happened to be the same as above). This org was a 5.5 to 2000. to 2003 coexistence with 2007 currently(because the mailbox role won't install). It has something to do with AD or permissions. Server 2008 r2 inherently has problems installing exchange. Example, having to use vista compatibility to get the mailbox role to install. SP2 patch gives the same error to some people, and also doesn't upgrade the mailbox role properly in some cases. Some people have had luck restarting the IIS admin service, but that did not solve my copy of this error. I will repost here if I find a solution to this issue... Same exact setup log for me as well. [3/4/2011 10:45:51 AM] [2] Interpreting line <OpenMachineKey:SYSTEM\CurrentControlSet\Services> -- ID:31259 -- [3/4/2011 10:45:51 AM] [2] Interpreting line <CreateSecureKey:MSExchangeIS\ParametersPrivate> -- ID:31259 -- [3/4/2011 10:45:51 AM] [2] CInsParser::ScProcessLine (f:\08.03.0083\sources\dev\admin\src\libs\exsetup\hiddenw1.cxx:1199) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Processing file 'C:\Program Files\Microsoft\Exchange Server\Setup\data\mdb_reg.ins', at or near line 77 (CreateSecureKey:MSExchangeIS\ParametersPrivate) -- ID:31111 -- CInsParser::ScProcessLine (f:\08.03.0083\sources\dev\admin\src\libs\exsetup\hiddenw1.cxx:488) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Registry file name: 'C:\Program Files\Microsoft\Exchange Server\Setup\data\mdb_reg.ins' CRegistryManager::ScProcessFile (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\tools\regmgr.cxx:125) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Filename = 'C:\Program Files\Microsoft\Exchange Server\Setup\data\mdb_reg' CBaseAtom::ScRunRegistryFile (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:1379) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Leaving CBaseAtom(Information Store Service)::ScRunRegistryFile [3/4/2011 10:45:51 AM] [2] Filename = 'C:\Program Files\Microsoft\Exchange Server\Setup\data\mdb_reg' CBaseAtom::ScAddRegistryKeys (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:1249) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Leaving CBaseAtom(Information Store Service)::ScAddRegistryKeys [3/4/2011 10:45:51 AM] [2] CAtomBaseMDB::ScAddRegistryKeys (f:\08.03.0083\sources\dev\admin\src\udog\exsetdata\components\server\a_basemdb.cxx:132) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Leaving CAtomBaseMDB::ScAddRegistryKeys [3/4/2011 10:45:51 AM] [2] CBaseAtom::ScAdd (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:639) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Leaving CBaseAtom(Information Store Service)::ScAdd [3/4/2011 10:45:51 AM] [2] Service = 'MSExchangeIS' CBaseServiceAtom::ScAdd (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\basesvcatom.cxx:203) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Leaving CBaseServiceAtom(Information Store Service)::ScAdd [3/4/2011 10:45:51 AM] [2] mode = 'Install' (61953) CBaseAtom::ScSetup (f:\08.03.0083\sources\dev\admin\src\udog\setupbase\basecomp\baseatom.cxx:535) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] ScSetupAtom (f:\08.03.0083\sources\dev\admin\src\udog\exsetdata\exsetds.cxx:897) Error code 0XC007007A (122): The data area passed to a system call is too small. [3/4/2011 10:45:51 AM] [2] Leaving ScSetupAtom [3/4/2011 10:45:51 AM] [2] [ERROR] An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [3/4/2011 10:45:51 AM] [1] The following 1 error(s) occurred during task execution: [3/4/2011 10:45:51 AM] [1] 0. ErrorRecord: An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [3/4/2011 10:45:51 AM] [1] 0. ErrorRecord: Microsoft.Exchange.Management.Deployment.ExsetdataException: An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [3/4/2011 10:45:51 AM] [1] [ERROR] An error occurred. The error code was 3221684346. The message was The data area passed to a system call is too small.. [3/4/2011 10:45:51 AM] [1] Setup is halting task execution because of one or more errors in a critical task. [3/4/2011 10:45:51 AM] [1] Finished executing component tasks. [3/4/2011 10:45:51 AM] [1] Ending processing. Just curious though, how long is your FQDN? Mine is 34 characters plus whatever exchange is adding to it during setup for this particular string. I found a post with the same error for ISA server and some buffer is only 100 characters for a system call. ERROR_INSUFFICIENT_BUFFER 122 (0x7A) The data area passed to a system call is too small. http://msdn.microsoft.com/en-us/library/ms681382(v=vs.85).aspx Indicates a msft programming problem. Outsource Technology Inc. MSFT Professional Consultant

I know this issue has been marked solved allready but in case anyone comes looking I would suggest that you try to run the SP3 update from a command line. Setup /m:upgrade

Dan Hoff was right! setup /m:upgrade from command line works fine! (Windows Server 2008 R2 and Exchange 2007 SP1 to SP3!!) Thanks!