# Backing up Outlook .pst with VSS and Snapshot Policy

**URL:** https://forum.duplicati.com/t/backing-up-outlook-pst-with-vss-and-snapshot-policy/12940
**Category:** Support
**Created:** [August 24, 2021, 8:26pm UTC](https://forum.duplicati.com/t/backing-up-outlook-pst-with-vss-and-snapshot-policy/12940 "2021-08-24T20:26:36Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![ts678](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@ts678](https://forum.duplicati.com/u/ts678)
#### Post date: [August 24, 2021, 10:22pm UTC](https://forum.duplicati.com/t/backing-up-outlook-pst-with-vss-and-snapshot-policy/12940/3 "2021-08-24T22:22:06Z")

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> [@mrculver11](#):
>
> Which .exe(s) exactly require elevation to successfully utilize snapshots?

Because this isn’t a service install (which doesn’t have to run as SYSTEM, if that’s the concern), it would be Duplicati.GUI.TrayIcon.exe, but note that the Program Files version is a base version that launches the latest version that the autoupdater might have installed, and path location of updates varies (even has the version as the final folder name). I’m not familiar with rights management clients, but I thought I’d mention.

[Downgrading / reverting to a lower version](https://forum.duplicati.com/t/downgrading-reverting-to-a-lower-version/3393)

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