Have you read the readme file? It's quite comphrensive.
http://www.teac.co.jp/dspd/download/fir ... plain.html
Method of using
Execute the program according to the following example.
Format: C:\temp>FLA532EB 532EB30B.BIN [option]
Example: C:\temp>FLA532EB 532EB30B.BIN /ps
532EB30B.BIN: This is the name of the binary file having the
drive firmware.
Be sure to input the extension (.BIN) also.
[option]: This is an option to specify the port to connect
to the CD-532EB.
option: /ps: primary & slave (default)
/sm: secondary & master
/ss: secondary & slave
/?: the method of using FLA532EB.EXE will be indicated.
If no option is input, the program judges that it is connected
to primary & slave.
Have you uncompressed the 532EB02.EXE so 532EB30B.BIN and FLA532EB.EXE are extracted? And you've copied these to the root directory of the system floppy disc?