use `COINIT_DISABLE_OLE1DDE` with `CoInitializeEx()`

It appears that OLE 1.0 is not utilized, so it should be beneficial to set this flag.

From "Initializing the COM Library":

... it is a good idea to set the COINIT_DISABLE_OLE1DDE flag in the dwCoInit parameter. Setting this flag avoids some overhead associated with Object Linking and Embedding (OLE) 1.0, an obsolete technology.

Request review @robUx4.