'Invalid authorization specification' from IDBInitialize::Initialize (c++)

Hi

I've been trying to connect to my local SQL Server instance (SQL Server 2005) using the SQLNCLI interface from c++ without success. I consistently receive an 'Invalid authorization specification' error (SQL state 28000 and SQL error number 0) when I call IDBInitialize::Initialize to connect to the database. I was hoping someone here could shed some light on this and help me out.

The strange thing is that I get no error if I leave the user blank (L"" in vValue.bstrVal) and try to connect. Also, IDBProperties::SetProperties returns 0 when the user is blank but 40eda when the user is set. This seems to be a message from the pipeline facility but I haven't found the description of the code (0xeda).

The user in the database is configured with no password and I can successfully connect to the server and open the database using that user through Management Studio.

I've also tried using the SQLOLEDB provider with the same results.

Suspecting that I'm setting the properties wrong I include a code snippet below showing how I'm setting the properties:

for (int i = 0; i < sizeof(dbprop) / sizeof(dbprop[0]); i++)
VariantInit(&dbprop[ i ].vValue);

// Server name
dbprop[0].dwPropertyID = DBPROP_INIT_DATASOURCE;
dbprop[0].vValue.vt = VT_BSTR;
dbprop[0].vValue.bstrVal = SysAllocString(L"localhost");
dbprop[0].dwOptions = DBPROPOPTIONS_REQUIRED;
dbprop[0].colid = DB_NULLID;

// Database
dbprop[1].dwPropertyID = DBPROP_INIT_CATALOG;
dbprop[1].vValue.vt = VT_BSTR;
dbprop[1].vValue.bstrVal = SysAllocString(L"test");
dbprop[1].dwOptions = DBPROPOPTIONS_REQUIRED;
dbprop[1].colid = DB_NULLID;

// Username
dbprop[2].dwPropertyID = DBPROP_AUTH_INTEGRATED;
dbprop[2].vValue.vt = VT_BSTR;
dbprop[2].vValue.bstrVal = SysAllocString(L"jph");
dbprop[2].dwOptions = DBPROPOPTIONS_REQUIRED;
dbprop[2].colid = DB_NULLID;

Cheers,
JPProblem solved.

A little bit embarrasing, since I, somehow, misinterpreted the DBPROP_AUTH_INTEGRATED parameter. It should have been DBPROP_AUTH_USERID (of course) instead.

The username propertie now looks like this:

// Username
dbprop[2].dwPropertyID = DBPROP_AUTH_USERID;
dbprop[2].vValue.vt = VT_BSTR;
dbprop[2].vValue.bstrVal = SysAllocString(L"jph");
dbprop[2].dwOptions = DBPROPOPTIONS_REQUIRED;
dbprop[2].colid = DB_NULLID;

and works like a charm.

JP