ocr: String length Encoding Less than 255 Byte 1 contains string length. Less than 65535 Byte 1=0xFF; bytes 2 and 3 are a WORD containing the string length. Greater than 65534 Byte 1=0xFF; bytes 2 and 3=0XFFFF; bytes 4, 5,6, and 7 are a DWORD containing the string length. Table 4: CString beader information.