Detect whether Office is 32bit or 64bit via the registry

Question

Now that Office also comes in a 64bit install  where in the registry do you find out if the version of Office installed is 32bit or 64bit

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I ve previously blindly followed the answer based on the MSDN docs   Today  this turned out to be less than required   On a machine with Office Home and Student installed  which doesn t include Outlook  HKEY LOCAL MACHINE SOFTWARE Wow6432Node Microsoft Office 14 0 Outlook was present  but HKEY LOCAL MACHINE SOFTWARE Microsoft Office 14 0 Outlook was not   I ve now changed my code to first look for the  plain  non-Wow6432Node version   If that s present  it ll be used   If not  it will continue by looking at the Wow6432Node version   This is being checked in an Inno Setup-based installer - I don t know which APIs Inno Setup uses   If your app doesn t access the registry in the same way  you might see different results

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To add to vtrz s answer  here s a function I wrote for Inno Setup   const     Constants for GetBinaryType return values      SCS 32BIT BINARY   0    SCS 64BIT BINARY   6      There are other values that GetBinaryType can return  but we re       not interested in them       Declare Win32 function    function GetBinaryType lpApplicationName  AnsiString  var lpBinaryType  Integer   Boolean  external  GetBinaryTypeA kernel32 dll stdcall    function Is64BitExcelFromRegisteredExe    Boolean  var   excelPath  String    binaryType  Integer  begin   Result    False    Default value - assume 32-bit unless proven otherwise        RegQueryStringValue second param is    to get the  default  value for the key       with no sub-key name  as described at       http   stackoverflow com questions 913938      if IsWin64   and RegQueryStringValue HKEY LOCAL MACHINE         SOFTWARE Microsoft Windows CurrentVersion App Paths excel exe             excelPath  then begin       We ve got the path to Excel        try       if GetBinaryType excelPath  binaryType  then begin         Result     binaryType   SCS 64BIT BINARY         end      except         Ignore - better just to assume it s 32-bit than to let the installation           fail   This could fail because the GetBinaryType function is not           available   I understand it s only available in Windows 2000           Professional onwards        end    end  end

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Here s what I was able to use in a VBscript to detect Office 64bit Outlook   Dim WshShell  blnOffice64  strOutlookPath Set WshShell   WScript CreateObject  WScript Shell   blnOffice64 False strOutlookPath WshShell RegRead  HKLM SOFTWARE Microsoft Windows CurrentVersion App Paths outlook exe Path   If WshShell ExpandEnvironmentStrings   PROCESSOR ARCHITECTURE       AMD64  And       not instr strOutlookPath   x86    gt  0 then    blnOffice64 True   wscript echo  Office 64  End If

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Outlook Bitness registry key does not exist on my machine   One way to determine Outlook Bitness is by examining Outlook exe  itself and determine if it is 32bit or 64bit    Specifically  you can check the  IMAGE FILE HEADER Machine  1  type and this will return a value indicating processor type   For an excellent background of this discussion  on reading the PE Header of a file read this  outdated link   which states    The IMAGE NT HEADERS structure is the primary location where specifics of the PE file are stored  Its offset is given by the e lfanew field in the IMAGE DOS HEADER at the beginning of the file  There are actually two versions of the IMAGE NT HEADER structure  one for 32-bit executables and the other for 64-bit versions  The differences are so minor that I ll consider them to be the same for the purposes of this discussion  The only correct  Microsoft-approved way of differentiating between the two formats is via the value of the Magic field in the IMAGE OPTIONAL HEADER  described shortly    An IMAGE NT HEADER is comprised of three fields   typedef struct  IMAGE NT HEADERS       DWORD Signature      IMAGE FILE HEADER FileHeader      IMAGE OPTIONAL HEADER32 OptionalHeader    IMAGE NT HEADERS32   PIMAGE NT HEADERS32    and you can get the c  code here   The Magic field is at the start of the IMAGE OPTIONAL HEADER structure  2 bytes at offset 24 from the start of the  IMAGE NT HEADERS  It has values of 0x10B for 32-bit and 0x20B for 64-bit

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I ve tested Otaku s answer and it appears that the Outlook bitness value is set even when Outlook is not installed  even though the article referenced does not clearly indicate that this would be the case

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Another way to detect the bitness of Office is to find out the typelib    For example  to detect Outlook s bitness  write a  JS file as following   function detectVersion       var outlooktlib    TypeLib   00062FFF-0000-0000-C000-000000000046        var HKCR   0x80000000       var loc   new ActiveXObject  WbemScripting SWbemLocator        var svc   loc ConnectServer null  root  default        var reg   svc Get  StdRegProv         var method   reg Methods  Item  EnumKey        var inparam   method InParameters SpawnInstance         inparam hDefKey   HKCR      inparam sSubKeyName   outlooktlib      var outparam   reg ExecMethod  method Name inparam       tlibver   outparam sNames toArray   0        method   reg Methods  Item  GetStringValue        inparam   method InParameters SpawnInstance         inparam hDefKey   HKCR      inparam sSubKeyName   outlooktlib          tlibver      0  win32       inparam sValueName           outparam   reg ExecMethod  method Name inparam       if outparam sValue  return  32 bit        method   reg Methods  Item  GetStringValue        inparam   method InParameters SpawnInstance         inparam hDefKey   HKCR      inparam sSubKeyName   outlooktlib          tlibver      0  win64       inparam sValueName           outparam   reg ExecMethod  method Name inparam       if outparam sValue  return  64 bit        return  Not installed or unrecognizable       You could find out other Office component s typelib id  and replace the first line of the function for it  Here is a brief list of interesting IDs    4AFFC9A0-5F99-101B-AF4E-00AA003F0F07  - Access  00020905-0000-0000-C000-000000000046  - Word  00020813-0000-0000-C000-000000000046  - Excel  91493440-5A91-11CF-8700-00AA0060263B  - Powerpoint  0002123C-0000-0000-C000-000000000046  - Publisher  0EA692EE-BB50-4E3C-AEF0-356D91732725  - OneNote 2010   F2A7EE29-8BF6-4A6D-83F1-098E366C709C  - OneNote 2007   All above lib id were found through the Windows SDK tool OLE-COM Object Viewer  you could find out more lib id s by using it   The benefit of this approach is that it works for all versions of office  and provides control on every single component in you interest  Furthermore  those keys are in the HKEY CLASSES ROOT and deeply integrated into the system  so it is highly unlikely they were not accessible even in a sandbox environment

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I ve found a secure and reliable way in my InnoSetup-based script to understand whether a particular application is 32-bit or 64-bit  in my case I needed to test Excel   by using a Win32 API function  This function is called GetBinaryType    it comes from  kernel32   despite the name it comes in 32 and 64 bit flavor  and looks directly at the exe s header

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I found this approach   If HKLM Software WOW6432Node exists then Windows is 64-bit   If HKLM Software WOW6432Node Microsoft Office exists  then Office is 32-bit   If HKLM Software WOW6432Node Microsoft Office does not exist  but HKLM Software Microsoft Office does exist  then Office is 64-bit   If HKLM Software WOW6432Node does not exist  then Windows and Office are 32-bit   Source  Technet Forums

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I don t have a key called bitness in either of these folders   I do have a key called  default  in both of these folders and the value is  unset   My computer came with office 2010 starter  I assume 64 bit    I removed it and tried to do a full install of 32 bit office   I keep getting the following message   the file is incompatible  check to see whether  you need x86 or x64 version of the program   any advice for me

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Not via the registry but via commandline tools   https   stackoverflow com a 6194710 2885897  C  Users me assoc  msg   msg Outlook File msg 15  C  Users me ftype Outlook File msg 15  Outlook File msg 15  C  Program Files  x86  Microsoft Office Root Office16 OUTLOOK EXE   f   1

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Regret to say  but Both Otacku s and  clatonh s methods aren t working for me - neither have Outlook Bitness nor   90140000-0011-0000-1000-0000000FF1CE  in registry  for 64-bit Office without Outlook installed     The only way I have found  though  not via the registry  is to check bitness for one of the Office executables with the use of the Windows API function GetBinaryType  since Windows 2000 Professional     For example  you can check the bitness of Winword exe  which path is stored under HKEY LOCAL MACHINE SOFTWARE Microsoft Windows CurrentVersion App Paths Winword exe   Here is the MFC code fragment   CRegKey rk  if  ERROR SUCCESS    rk Open HKEY LOCAL MACHINE      SOFTWARE  Microsoft  Windows  CurrentVersion  App Paths  Winword exe      KEY READ         CString strWinwordPath      DWORD dwSize   MAX PATH      if  ERROR SUCCESS    rk QueryStringValue strWinwordPath           strWinwordPath GetBuffer MAX PATH    amp dwSize                 strWinwordPath ReleaseBuffer                DWORD dwBinaryType              if    GetBinaryType strWinwordPath   amp dwBinaryType                     if  SCS 64BIT BINARY    dwBinaryType                           Detected 64-bit Office                    else                          Detected 32-bit Office                                  else                      Failed                         else                  Failed                 else          Failed

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Attention  querying the bitness of the Outlook Application does NOT reliably work if called in  NET environment   Here  we use GetBinaryType   in a DLL that can be called by any application    If the host application is 64 bit C C    GetBinaryType   returns SCS 32BIT BINARY  If the host application is 64 bit  NET  we tested  AnyCPU  on a 64 bit system   GetBinaryType   returns SCS 64BIT BINARY    With exactly the same DLL code and exactly the same Outlook binary path   c  Program Files  x86        on the same computer   Meaning that you might need to test the binary file yourself using  IMAGE NT HEADERS FileHeader Machine  entry   God  I hate the incorrect return values of some Windows APIs  see also GetVersion   lie

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clatonh  this is the path of the registry on my PC  HKEY LOCAL MACHINE SOFTWARE Microsoft Office 14 0 Registration 90140000-002A-0000-1000-0000000FF1CE  and it s definitely a 32-bit-installation on a 64-bit OS

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I have win 7 64 bit   Excel 2010 32 bit   The registry is HKEY LOCAL MACHINE SOFTWARE Microsoft Office 14 0 Registration 90140000-002A-0000-1000-0000000FF1CE   So this can tell bitness of OS  not bitness of Office

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I found the way for checking office bitness    We can check office 365 and 2016 bitness using this registry key   HKEY LOCAL MACHINE SOFTWARE Microsoft Office ClickToRun Configuration   Platform  x86 for 32 bit   HKEY LOCAL MACHINE SOFTWARE Microsoft Office ClickToRun Configuration   Platform  x64 for 64 bit   Please check

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From TechNet article on 64-bit editions of Office 2010      If you have installed Office 2010   including Microsoft Outlook 2010    Outlook sets a registry key named   Bitness of type REG SZ on the computer on which it is installed  The   Bitness registry key indicates whether the Outlook 2010 installation   is 32-bit or 64-bit  This may be   useful to administrators who are   interested in auditing computers to   determine the installed versions of   Office 2010 in their organization          Registry path     HKEY LOCAL MACHINE Software Microsoft Office 14 0 Outlook   if you have installed Office 2013 then use this     Registry path     HKEY LOCAL MACHINE Software Microsoft Office 15 0 Outlook   Registry key  Bitness   Value  either x86 or x64      and elsewhere in the same article      Starting with Office 2010  Outlook is   available as a 32-bit application and   a 64-bit application  The version    bitness  of Outlook that you choose   depends on the edition of the Windows   operating system  32-bit or 64-bit    and the edition of Office 2010  32- or   64-bit  that is installed on the   computer  if Office is already   installed on that computer       Factors that determine the feasibility   of installing a 32-bit or a 64-bit   version of Outlook include the   following          You can install 32-bit Office 2010 and 32-bit Microsoft Outlook 2010 on a supported 32-bit or 64-bit edition of the Windows operating system  You can install the 64-bit version of Office 2010 and 64-bit Outlook 2010 only on a supported 64-bit operating system    The default installation of Office 2010 on a 64-bit edition of the Windows operating system is 32-bit Office 2010    The bitness of an installed version of Outlook is always the same as the bitness of Office 2010  if Office is installed on the same computer  That is  a 32-bit version of Outlook 2010 cannot be installed on the same computer on which 64-bit versions of other Office 2010 applications are already installed  such as 64-bit Microsoft Word 2010 or 64-bit Microsoft Excel 2010  Similarly  a 64-bit version of Outlook 2010 cannot be installed on the same computer on which 32-bit versions of other Office applications are already installed

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EDIT   Solution without touching RegistryKeys -  im Sorry Op   I found out that there is a solution in C  - the original can be found here   https   blogs msdn microsoft com webdav 101 2016 07 26 sample-detecting-installed-outlook-and-its-bitness   I modified it a bit for my needs   just pass the correct outlookPath to GetOutlookBitness      public enum BinaryType   uint                SCS 32BIT BINARY   0     A 32-bit Windows-based application         SCS 64BIT BINARY   6     A 64-bit Windows-based application          SCS DOS BINARY   1     An MS-DOS     based application         SCS OS216 BINARY   5     A 16-bit OS 2-based application         SCS PIF BINARY   3     A PIF file that executes an MS-DOS     based application         SCS POSIX BINARY   4     A POSIX     based application         SCS WOW BINARY   2    A 16-bit Windows-based application               DllImport  kernel32 dll        static extern bool GetBinaryType string lpApplicationName  out BinaryType lpBinaryType           public int GetOutlookBitness string FilePath                int bitness   0           if  File Exists FilePath                         BinaryType type              GetBinaryType FilePath  out type                 switch  type                                case BinaryType SCS 32BIT BINARY                      bitness   32                      break                  case BinaryType SCS 64BIT BINARY                      bitness   64                      break                                   return bitness

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I ve found a much easier way  Using Powershell  we can hook Excel as a COM object    user    env UserName  msoExcel   New-Object -ComObject Excel Application    msoExcel   Select-Object -Property OperatingSystem   Out-File    SERVER Path To Dump msoVersion- user txt  exit   When requesting the OperatingSystem this way  we get strange results   have a look here  PC3 is mine   I hope this works for you guys  Sorry for the lack of code  my scripts are mostly functional   Edit  Don t forget to add the code to close Excel after you re done retrieving the data  After testing this code yesterday I had tons of Excel opening and crashing all of a sudden  This will make sure you ll keep users and admins happy      System Runtime Interopservices Marshal   ReleaseComObject  msoExcel  Remove-Variable msoExcel

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This Wikipedia article states      On 64-bit versions of Windows  there are two folders for application files  the  Program Files  folder contains 64-bit programs  and the  Program Files  x86   folder contains 32-bit programs    So if the program is installed under C  Program Files it is a 64-bit version  If it is installed under C  Program Files  x86  it is a 32-bit installation

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I wrote this for Outlook at first   Modified it a little for Word  but it will not work on a standalone install because that key does not show the bitness  only Outlook does   Also  I wrote it to only support current versions of Office    2010  I stripped all the setup and post processing      checkarch     IF NOT   PROCESSOR ARCHITECTURE     x86  SET InstallArch 64bit     IF   PROCESSOR ARCHITEW6432     AMD64  SET InstallArch 64bit     IF   InstallArch     64bit  SET Wow6432Node  Wow6432Node GOTO  beginscript   beginscript SET  cmdDetectedOfficeVersion reg query  HKEY CLASSES ROOT Word Application CurVer   FOR  F  tokens   USEBACKQ    F IN     cmdDetectedOfficeVersion  2  gt NUL    DO   SET  intDetectedOfficeVersion   F   set  intDetectedOfficeVersion   intDetectedOfficeVersion  -2     switchCase    Call and mask out invalid call targets     goto  case  intDetectedOfficeVersion  2 gt nul         Default case     ECHO Not installed Supported         goto  case-install   case14     Set  strOutlookVer  Word 2010    intDetectedOfficeVersion       CALL  GetBitness   intDetectedOfficeVersion      GOTO  case-install    case15     Set  strOutlookVer  Word 2013    intDetectedOfficeVersion       CALL  GetBitness   intDetectedOfficeVersion      GOTO  case-install  case16     Set  strOutlookVer  Word 2016    intDetectedOfficeVersion       CALL  GetBitness   intDetectedOfficeVersion      goto  case-install  case-install     CALL  output text   strOutlookVer    strBitness  is installed GOTO  endscript    GetBitness FOR  F  tokens 3     a in   reg query  HKLM Software Wow6432Node  Microsoft Office  1 0 Outlook   v Bitness 2  gt NUL   DO Set  strBitness   a GOTO  EOF

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Open Outlook 2013   File   Office account   About Outlook   click large    About Outlook  button   read popup description

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Best easy way  Put the ABOUT Icon on your Office 2016 Application  Example Excel  1  Open Excel -  File -  Options -  Customize Ribbon  2  You  ll see 2 panes  Choose Commands From  amp  Customize The Ribbon  3  From Choose Command  Select All Commands  4  From the resulting List Highlight About  Excel   5  From the Customize The Ribbon Pain  Highlight Any Item  ex  View  where you want to put the About icon  6  Click New group at the bottom  7  Click the add button located between the two pane   DONE  Now when you click the View Tab in excel and click about you ll see 32 bit or 64 bit

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You do not need to script it   Look at this page that I stumbled across    https   social msdn microsoft com Forums office en-US 43499ae0-bcb5-4527-8edb-f5a955987b56 how-to-detect-whether-installed-ms-office-2010-is-32-or-64-bit forum worddev  To summarize    The fourth field in the productcode indicates the bitness of the product    BRMMmmmm-PPPP-LLLL-p000-D000000FF1CE  p000  0 for x86  1 for x64 0-1   This also holds true for MSOffice 2013

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If one wants to know only what bit number an installed version of Office 2010 is  then in any application of Office 2010  just click on File  then on Help  Information about version number will be listed  and next to that  in parentheses  will be either  32-bit  or  64-bit

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This InnoSetup code is working for me under Win 10x64 and Office 2016 x86  using  HKLM SOFTWARE Microsoft Office ClickToRun Configuration  and key  Platform     Code  const   RegOffice  SOFTWARE Microsoft Office ClickToRun Configuration     RegOfficeKey  Platform         lt summary gt      Get current HKLM version      lt  summary gt  function GetHKLM  Integer  begin   if IsWin64 then     Result    HKLM64   else     Result    HKLM32  end        lt summary gt      Check is Microsoft Office is installed or not      lt  summary gt  function IsOfficeInstalled     Boolean  var   platform  string  begin   RegQueryStringValue GetHKLM    RegOffice  RegOfficeKey  platform     if platform    x86  then begin    SuppressibleMsgBox  Microsoft Office found  x86 version     mbConfirmation  MB YESNO or MB DEFBUTTON1  IDYES       Result    True    end else if platform    x64  then begin     SuppressibleMsgBox  Microsoft Office found  x64 version    mbConfirmation  MB YESNO or MB DEFBUTTON1  IDYES       Result    True    end else begin     SuppressibleMsgBox  Microsoft Office NOT found    platform        mbConfirmation  MB YESNO or MB DEFBUTTON1  IDYES       Result    False    end  end

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Search the registry for the install path of the office component you are interested in  e g  for Excel 2010 look in SOFTWARE Wow6432Node  Microsoft Office 14 0 Excel InstallRoot  It will only be either in the 32-bit registry or the 64-bit registry not both

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In my tests many of the approaches described here fail  I think because they rely on entries in the Windows registry that turn out to be not reliably present  depending on Office version  how it was installed etc  So a different approach is to not use the registry at all  Ok  so strictly that makes it not an answer to the question as posed   but instead write a script that    Instantiates Excel Adds a workbook to that Excel instance Adds a VBA module to that workbook Injects a small VBA function that returns the bitness of Office Calls that function Cleans up   Here s that approach implemented in VBScript   Function OfficeBitness        Dim VBACode  Excel  Wb  Module  Result      VBACode    Function Is64bit   As Boolean   amp  vbCrLf  amp                    If Win64 Then   amp  vbCrLf  amp                       Is64bit   True   amp  vbCrLf  amp                    End If   amp  vbCrLf  amp                   End Function       On Error Resume Next     Set Excel   CreateObject  Excel Application       Excel Visible   False     Set Wb   Excel Workbooks Add     Set Module   Wb VBProject VBComponents Add 1      Module CodeModule AddFromString VBACode     Result   Excel Run  Is64bit       Set Module   Nothing     Wb Saved   True     Wb Close False     Excel Quit     Set Excel   Nothing     On Error GoTo 0     If IsEmpty Result  Then         OfficeBitness   0  Alternatively raise an error here      ElseIf Result   True Then         OfficeBitness   64     Else         OfficeBitness   32     End If  End Function   PS  This approach runs more slowly than others here  about 2 seconds on my PC  but it might turn out to be more reliable across different installations and Office versions   After some months  I ve realised there may be a simpler approach  though still one that instantiates an Excel instance  The VBScript is   Function OfficeBitness       Dim Excel     Set Excel   CreateObject  Excel Application       Excel Visible   False     If InStr Excel OperatingSystem  64    gt  0 Then         OfficeBitness   64     Else         OfficeBitness   32     End if     Excel Quit     Set Excel   Nothing End Function   This relies on the fact that Application OperatingSystem  when called from 32-bit Excel on 64-bit Windows returns Windows  32-bit  NT 10 00 or at least it does on my PC  But that s not mentioned in the docs

User · Answer

You can search the registry for  90140000-0011-0000-0000-0000000FF1CE   If the bold numbers start with 0 its x86  1 is x64   For me it was in  HKEY LOCAL MACHINE SOFTWARE Microsoft Office 14 0 Registration 90140000-0057-0000-0000-0000000FF1CE   Source

[registry] Detect whether Office is 32bit or 64bit via the registry

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