PresharedKey Property of the IFPCVpnNetworkIPSecSettings Interface

The PresharedKey property gets or sets the preshared key for IPsec authentication. A preshared key is a string of text that is configured on both the VPN client and the VPN server. A preshared key provides a relatively weak authentication method. We therefore recommend that you use it only in the interim when your public key infrastructure (PKI) is being deployed to obtain computer certificates, or when a preshared key is required by VPN clients.

HRESULT put_PresharedKey(
	BSTR bstrPresharedKey
HRESULT get_PresharedKey(
	BSTR* pbstrPresharedKey



Pointer to a BSTR that is set on return to a string value specifying the preshared key for IPsec authentication.


BSTR that specifies the preshared key for IPsec authentication.

Return Value

These property methods return S_OK if the call is successful; otherwise, they return an error code.

[Visual Basic]
Property PresharedKey As String

Property Value

String that specifies the preshared key for IPsec authentication.


This property is read/write. Its default value is an empty string.


Client Requires Windows Vista or Windows XP.
Server Requires Windows Server 2008.
Version Requires Forefront Threat Management Gateway (TMG).

Declared in Msfpccom.idl.


Requires Msfpccom.dll.

See Also


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Build date: 11/30/2009

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