AcquireCredentialsHandle returns SEC_E_UNKNOWN_CREDENTIALS in Vista

[abhisoni]

Hi,
I have code that works fine for all OSs from Win2KPro to Win2K3 Server, But fails for Windows Vista....

SchannelCred.dwVersion = SCHANNEL_CRED_VERSION;
SchannelCred.cCreds = 1;
SchannelCred.paCred = &CertContext;
SchannelCred.grbitEnabledProtocols = dwEnabledProtocols;
SchannelCred.dwFlags = 0;

SECURITY_STATUS ss = m_psft->AcquireCredentialsHandle (0,
UNISP_NAME,
SECPKG_CRED_INBOUND,
0,
&SchannelCred,
0,
0,
&m_hServerCreds,
0);

if (ss != SEC_E_OK)
BioThrowSystem(ss);

The Value of "ss" is SEC_E_UNKNOWN_CREDENTIALS and the GetLastError() returns Error 0x00000057 i.e. The parameter is incorrect.

Plz Help. It's URGENT

[weaknessforcats]

A 0x57 is a ERROR_INVALID_PARAMETER.

I suspect one of your arguments is incorrect.

See http://msdn2.microsoft.com/en-us/library/ms681382.aspx.

[abhisoni]

I am using Schannel SSP and as per the description in MSDN the given values are. Is there anything that is missing to be done?