Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54760

Ferro CCTV calls this.

Ferro CCTV calls this.

Ferro CCTV calls this.

Ferro CCTV calls this.

(Thanks to Andrey for point it out).
Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Put provider initialization properties in a single DBPROP_INIT_PROVIDERSTRING for IDBProperties::SetProperties().
Otherwise, according to MSDN for IDBProperties::SetProperties(), if the same property is specified
more than once, the value used is provider-specific. So it won't be consider as an initialization property.

Fix PowerPivot for Excel not connecting to embedded data sources.

"Initial Catalog" should use property DBPROP_INIT_CATALOG instead of DBPROP_CATALOGLOCATION.

Fix PowerPivot for Excel not able to query embedded data sources.

GCC 13 was going to diagnose
dlls/webservices/writer.c:960:18: warning: 'mag2' may be used uninitialized