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Salesforce for Outlook Installation Diagram

Knowledge Article Number 000220050
Description Salesforce for Outlook installation process.
Salesforce for Outlook install diagram small
(Click to enlarge)

System Requirements

Before you download and install Salesforce for Outlook (SFO), visit the SFO System Requirements page to make sure your system meets the minimum requirements.


Changes in Salesforce for Outlook Installer

Before you install, uninstall, or upgrade SFO, make sure you understand the differences between different versions.

1. Installation Per-Machine vs Per-User (This is the detail explanation of the big orange box in the diagram)

Per-Machine” as known as "Everyone who logs in to this computer", installation is performed to allow all registered users of the computer to access and use the application.

Per-User” as known as "Me Only" installation is performed for the single user that is executing the SFO Setup – it is not available for use by any other user of the computer. For instance, if user A logs into his machine and installs SFO using this option and logs off then user B logs into the same machine. User B will need to install SFO again to be able to use it. 

2. Who can install the application (Who - user permission and their Windows profile, Local Administrator, etc)
3. The location of the installation folder in each version
4. The location of the log files and user database in each version


Salesforce For Outlook
(SFO) version
SFO v2.4.x & older SFO v2.5 thru 2.7.xSFO v2.8.x & later
Installation OptionPer-Machine by DefaultPer-User by defaultOptional either



Must be installed byLocal AdministratorEnd User1. Local Administrator
2. End User
Location of the installation folderProgram Files %AppData%\Salesforce.com1. Program Files 
Location of the Logs %AppData%\\Salesforce for Outlook\%AppData%\\Salesforce for Outlook\ Logs
* If you install SFO for the very first time on your machine, using the "Me Only" Option the installation folder would
be %LocalAppData%\Programs



 Salesforce for Outlook (SFO) installer is available to download in 2 formats, .exe and .msi.
  • .EXE  : Executable, It is the easiest way to install the application locally. It contains both .MSI version of the SFO installer (32bit and 64bit) and the Primary Interop Assemblies (PIA) for Outlook 2007 and 2010. It checks for prerequisites on the computer and if any of them are missing, it will install them first before installing SFO.
  • .MSI  : MSI is acronym for Microsoft Silent Installer. It can be deployed through various means. Such as Locally, Command Prompt with switches, Group Policy, SMS, SCCM and etc. It is used by IT departments for centralized management and configuration or applications, etc. It doesn't check for prerequisites on the computer and won't fail if any of them are missing hence they have to be installed first by your IT or a Local Administrator before using the MSI.

Prerequisites must be installed before installing SFO by a Local Administrator or a System Account.
  • If you run SFO executable file, the .EXE, for the first time as a non-admin Windows user, the installation may fail. It is best to ask your Local Administrator or someone from your IT team to install them for you.
  • The prerequisites must be pushed out first using a System account before, SFO deployment
  • The installer bitness must match your Outlook bitness. For Office 32bit installation you would need to install the 32bit (x86) version of MSI and if you use the .EXE it will detect the bitness in the registry and installs the correct bitness
  • Registry key that would be checked is HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\15.0\Outlook There is a bitness key with a value of either x86 or x64

Microsoft .NET Framework 4.x

You can download this from Microsoft or the installer will prompt you to download and install it when you run the .EXE
The .MSI wont check for any prerequisites and iyou must always try to install using the .EXE file uness you know how to use the ,MSI version.
SFO v3.0.x and later will require Microsoft .NET Framework 4.5.2 or later

VSTO - Microsoft Visual Studio Tools for Office Runtime 2010

Microsoft Visual Studio Tools for the Microsoft Office system (Version 4.0 Runtime) This only installs the bitness matching your Operating System. If you have Windows 7 64bit, then you only need to push out or install the 64bit MSI. The downloaded file is in the .EXE format which can be run manually as is on the computer by a Local Administrator. You can also use the /Extract switch to get the MSI version if you would like to deploy it using automation. You can also use this link from Microsoft to download it.

PIA - Primary Interop Assemblies (PIA) redistributable package
is tied to your installed version of Microsoft Outlook. This is already packaged with our SFO .EXE version for Outlook 2007 and 2010. You can easily extract it if needed. The PIA is only needed if you have Outlook 2007 or 2010. For Office 2013 and later users, this is part of Office .Net Programmability support that can be installed as an add-on feature with Microsoft Office. SFO installation will fail if this is not installed. Refer to Salesforce for Outlook installation fails

** For Click to Run versions or Office 365, an Online Repair will make sure this feature is installed. 

Microsoft Visual C++ 2010 Redistributable (Both bitness will be installed on your machine x86 (32 bit) and x64 (64 bit))
Alert icon Heads up - Please note that these links are from Microsoft's websites. If at anytime the links are moved or broken, you can always search for them on Microsoft website


Use the /Extract switch

1. Click on Start and type in CMD 
2. Once you see the CMD in the application list, right click on it and click on "Run as Administrator"
3. In the Command Prompt (CMD) navigate to the directory that contains the executable file (the .exe) such as SalesforceForOutlook.exe or vstor_redist.exe (VSTO downloaded file) and use the command below:
SalesforceforOutlook.exe /extract

1.  Lets assume you have downloaded the VSTO  - vstor_redist.exe  file in the c:\setup folder
2.  In the Command Prompt type in   CD \setup  and press Enter to change directory and enter the Setup folder. The prompt will change to     C:\Setup >
3.  Now you are inside the new Setup folder that contains the vstor_redist.exe file
4.  Type in vstor_redist.exe /Extract and press enter
5.  A pop up window will open and show you the extraction process
6.  In that folder you should find many files and folders, including the MSI version of the VSTO


Install Salesforce For Outlook


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