windows-itpro-docs/windows/client-management/mdm/policy-csp-admx-fileservervssprovider.md

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title	description	author	manager	ms.author	ms.date	ms.localizationpriority	ms.prod	ms.technology	ms.topic
ADMX_FileServerVSSProvider Policy CSP	Learn more about the ADMX_FileServerVSSProvider Area in Policy CSP.	vinaypamnani-msft	aaroncz	vinpa	08/10/2023	medium	windows-client	itpro-manage	reference

Policy CSP - ADMX_FileServerVSSProvider

[!INCLUDE ADMX-backed CSP tip]

Pol_EncryptProtocol

Scope	Editions	Applicable OS
✅ Device ❌ User	✅ Pro ✅ Enterprise ✅ Education ✅ Windows SE ✅ IoT Enterprise / IoT Enterprise LTSC	✅ Windows 10, version 2004 [10.0.19041.1202] and later ✅ Windows 10, version 2009 [10.0.19042.1202] and later ✅ Windows 10, version 21H1 [10.0.19043.1202] and later ✅ Windows 11, version 21H2 [10.0.22000] and later

./Device/Vendor/MSFT/Policy/Config/ADMX_FileServerVSSProvider/Pol_EncryptProtocol

Determines whether the RPC protocol messagese used by VSS for SMB2 File Shares feature is enabled.

VSS for SMB2 File Shares feature enables VSS aware backup applications to perform application consistent backup and restore of VSS aware applications storing data on SMB2 File Shares.

By default, the RPC protocol message between File Server VSS provider and File Server VSS Agent is signed but not encrypted.

Note

To make changes to this setting effective, you must restart Volume Shadow Copy (VSS) Service .

Description framework properties:

Property name	Property value
Format	chr (string)
Access Type	Add, Delete, Get, Replace

[!INCLUDE ADMX-backed policy note]

ADMX mapping:

Name	Value
Name	Pol_EncryptProtocol
Friendly Name	Allow or Disallow use of encryption to protect the RPC protocol messages between File Share Shadow Copy Provider running on application server and File Share Shadow Copy Agent running on the file servers.
Location	Computer Configuration
Path	System > File Share Shadow Copy Provider
Registry Key Name	Software\Policies\Microsoft\Windows\fssProv
Registry Value Name	EncryptProtocol
ADMX File Name	FileServerVSSProvider.admx

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