byte[] buffer = new byte[1024];

        // Setup buffer after header
        buffer[33] = 4; // wordCount
        buffer[34] = (byte) 0xFF; // andxCommand
        buffer[36] = 0; // andxOffset low
        buffer[37] = 0; // andxOffset high
        SMBUtil.writeInt2(20, buffer, 42); // byteCount

        int length = testBlock.decode(buffer, 0);

        assertTrue(length > 0);
        assertEquals(4, testBlock.wordCount);

        this.andx.batchLevel = this.batchLevel + 1;

        dst[start + ANDX_COMMAND_OFFSET] = this.andxCommand;
        dst[start + ANDX_RESERVED_OFFSET] = (byte) 0x00;
        this.andxOffset = dstIndex - this.headerStart;
        SMBUtil.writeInt2(this.andxOffset, dst, start + ANDX_OFFSET_OFFSET);

        this.andx.setUseUnicode(this.isUseUnicode());
        if (this.andx instanceof AndXServerMessageBlock) {

            /*

     * actually read. Incedentally this is important to the
     * AndXServerMessageBlock class that needs to potentially
     * read in another smb's parameter words and bytes based on
     * information in it's andxCommand, andxOffset, ...etc.
     */

    /**
     * Writes the parameter words portion of the SMB message to the wire format.
     *
     * @param dst the destination buffer