FIX: Zetadocs PDF fails to start with Outlook 2013 Print ZTN3610 ID: ZTN3610 This Zetadocs technical note applies to: Zetadocs PDF Client versions 8 to 9.3.399 Symptom Zetadocs PDF client throws an error similar to the following: “Exception of type ‘Zetadocs.Exceptions.ExceptionTypes.UndeterminableOutlookVersionBitnessExceptioin’ was thrown. Cause The logic previously used to check the installed version of Outlook could not find the appropriate registry key. Resolution This issue is resolved in a hotfix. The hotfix correctly resolves the version of Outlook. Alternatively a workaround is available. The workaround is to add the following registry keys: 1. HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\15.0\Outlook - String value called (Default) with the value Outlook.Application.15 2. HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\15.0\Outlook - String value called Bitness with the value x64. Registry Editor warning WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Equisys cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Status The latest version of the Zetadocs PDF Client software can be downloaded here to resolve this issue. Last updated: 23rd June 2015 (JC) Keywords: ZD PDF, O365, bitness exception, UndeterminableOutlookVersionBitnessException.