method FreeBSTR.
Frees BSTR which is allocated and returnd from different properties or methods.
HRESULT FreeBSTR(
BSTR BString
BSTR
BString
);
[in] . BSTR data
S_OK
The operation was successfull.
E_UNEXPECTED
An unexpected error occoured.
E_FAIL
A general error occoured.
IAPI