CString Methods at MSDN

http://msdn.microsoft.com/ja-jp/library/ms908314.aspx

Can use 'Find' to find a sub string in another string.

http://www.codeproject.com/KB/string/bstrsproject1.aspx

Copying a BSTR to a CString.

Note that the BSTR must be converted to a _bstr_t first.  If this is not done you only get the first character of the BSTR in the new CString.

BSTR GetBSTR() 

{     

_bstr_t bstr1(_T("This is the test string."));          

BSTR bstr;      bstr = bstr1.copy();      

   return bstr; 

}     

CComBSTR GetComBSTR() 

{     

CComBSTR bstr("This is the test string.");      

   return bstr; 

}   

void CVbsDlg::ShowBSTR(BSTR bstr) 

{     

_bstr_t bstrStart(bstr);           

CString s;      

s.Format(_T("%s"), (LPCTSTR)bstrStart);      AfxMessageBox(s);  

}