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

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?

Answer 1

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 '[e-mail] 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;

Answer 2

@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.

Answer 3

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

Answer 4

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)

Answer 5

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 & 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

Answer 6

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...