Cognos 8.4.1 does not start after updates on Win2008 R2 server

[blom0344]

After applying the latest updates to Win2008 R2 server (somehow introducing IE version 10 as well) , the Cognos 8.4.1. instance no longer starts.
I experienced similar problems with customer sites over the past years and it usually was a matter of taking down the maximum memory from 768 to something like 512 Mb to solve similar issues.  No luck this time..  I am  developer, not an admin, so I'd appreciate all suggstions   ;)

In the Win server log:

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Faulting application name: cogbootstrapservice.exe, version: 8.4.6008.0, time stamp: 0x4acb65fd
Faulting module name: ntdll.dll, version: 6.1.7601.17725, time stamp: 0x4ec4aa8e
Exception code: 0xc0000374
Fault offset: 0x00000000000c40f2
Faulting process id: 0x4c0
Faulting application start time: 0x01ce57c2cd333922
Faulting application path: C:\Program Files\Cognos\C841_64\bin64\cogbootstrapservice.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 4bb8d9c0-c3b9-11e2-a888-0050569c0002


Which does not make much sense as the mentioned paths are valid..
edit:

just not the java.log error:

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16    ERROR [main] - LogIPFControl::initCAMCrypto() - Cannot create CAM signing session.
CAM-CRP-1114 Unable to find the Certificate Authority self-signed certificate with alias 'ca' in the keystore 'C:/Program Files/Cognos/C841_64/configuration/signkeypair\jCAKeystore'.
at com.cognos.accman.jcam.crypto.misc.KeyStoreReader.getCACertificate(KeyStoreReader.java:590)
at com.cognos.accman.jcam.crypto.misc.Configuration.isCAKeyPairValid(Configuration.java:1442)
at com.cognos.accman.jcam.crypto.CAMFactory.initialize(CAMFactory.java:155)
at com.cognos.indications.LogIPFControl.initCAMCrypto(LogIPFControl.java:526)
at com.cognos.indications.LogIPFControl.initialize(LogIPFControl.java:147)
at com.cognos.crconfig.CRConfigFrame.initDataManager(CRConfigFrame.java:549)
at CRConfig.main(CRConfig.java:320)

according to IBM this should be about sufficient rights on cogstartup.xml file:
http://www-01.ibm.com/support/docview.wss?uid=swg21446734
but these have not changed, nor are they insufficient..

[blom0344]

Okay, silly to answer my own thread, but as it turned out we had goofed by explicitly setting a JAVA_HOME variable to use Pentaho Data Integrator on the same server (bad idea, I know).

Removing the JAVA_HOME entry and rebooting seems to be the cure. Another thing learned: asses what has been altered.

Cognos kept working untill we tried to restart services trying to spawn the wrong JAVA version..

[MFGF]

Thanks for the useful info Ties! Glad you managed to figure it out! :)