PCT 1.0

Enables or disables the use of PCT 1.0. This protocol will never be used by Schannel SSP.

Changing this setting will require a restart of the computer before the setting will take effect.


Supported on: At least Windows 2000
Enable Client-side PCT 1.0 (eg., Internet Explorer)
Enable policy:
Registry PathValue NameValue TypeValue
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ClientEnabledREG_DWORD1
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ClientDisabledByDefaultREG_DWORD0
Disable policy:
Registry PathValue NameValue TypeValue
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ClientEnabledREG_DWORD0
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ClientDisabledByDefaultREG_DWORD1
Enable Server-side PCT 1.0 (eg., IIS)
Enable policy:
Registry PathValue NameValue TypeValue
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ServerEnabledREG_DWORD1
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ServerDisabledByDefaultREG_DWORD0
Disable policy:
Registry PathValue NameValue TypeValue
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ServerEnabledREG_DWORD0
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\ServerDisabledByDefaultREG_DWORD1

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