/*Create a temporary file name for the dac file.*/
	GUID guid = GUID_NULL;
	::CoCreateGuid(&guid);
	CString sTempFileName(_T("eradplottmp.dac"));

/*Create a file name from a GUID identifier.*/
	if (guid != GUID_NULL)
	{
		sTempFileName.Format("%08lX-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X",guid.Data1, guid.Data2, guid.Data3,
		guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
		guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7],
		// second copy...
		guid.Data1, guid.Data2, guid.Data3,
		guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
		guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
	}