The Switch Client for Windows supports both 32 and 64-bit versions of Windows Vista/7/8/10
Please find the Outlook version compatibility table below:
| Outlook Version | Switch Client Version |
| 2003 | v4.0 |
| 2007 (SP3 required) | v4.26 |
| 2010 | v4.26 and higher |
| 2013 | v4.26 and higher |
| 2016 | v4.62 and higher |
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