Getting the OAK software

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Like many applications, OAK is provided as a single MSI file which is used by Windows Installer, Microsoft's software installer that is part of Windows.

To install OAK, you need a copy of OAK4.msi or for the 64-bit edition of Excel 2010, OAK4-x64.msi.

•	The file can be downloaded from www.operisanalysiskit.com/TryOak.htm.

•	Alternatively, it's perfectly fine to take a copy of that file from a colleague who has already downloaded it.

•	If your firewall obstructs you from downloading executable files of this kind, Operis will be happy to email it to you on request to oak@operis.com.

•	Copies on a mini-CD (or a full sized CD if your computer has a slot-loader for discs) are also available from Operis.

Prerequisites

OAK has a number of prerequisites, but these are most likely installed already, and the OAK installer will complain if they are not.

EXCEL 2010

If you are using Excel 2010, you will need to select an installer based on the edition of Excel you have. Please note that although you may be using a 64-bit edition of Windows, this does not mean you are using a 64-bit edition of Excel.

The following table shows which installer applies to each Excel / Windows combination.

Excel	Windows (x86 or 32-bit)	Windows 64-bit
Excel 2000-2007, Excel 2010 32-bit	OAK4.msi	OAK4.msi
Excel 2010 64-bit	Not Applicable	OAK4-x64.msi

If you are using Excel 2010, and are unsure of which edition, then please refer to the section titled: OAK for 64-bit Excel.