29   CPropVariant& operator=(const CPropVariant &varSrc);  variable
30   CPropVariant& operator=(const PROPVARIANT &varSrc);  variable
31   CPropVariant& operator=(BSTR bstrSrc);  variable
32   CPropVariant& operator=(LPCOLESTR lpszSrc);  variable
33   CPropVariant& operator=(const char *s);  variable
34   CPropVariant& operator=(bool bSrc);  variable
35   CPropVariant& operator=(Byte value);  variable
36   CPropVariant& operator=(Int16 value);  variable
37   CPropVariant& operator=(Int32 value);  variable
38   CPropVariant& operator=(UInt32 value);  variable
39   CPropVariant& operator=(Int64 value);  variable
40   CPropVariant& operator=(UInt64 value);  variable
41   CPropVariant& operator=(const FILETIME &value);  variable