For Windows you might also need fix for CR 737365 to get backup to TSM working.
CR 737365
"Dump database to TSM API on Windows can fail with the error message "D00: SYBMULTBUF ERROR: Emulator interprocess communication failed with error state = 9, error code=109, system message=Cannot get operating system error tex." Occasionally "system message =The pipe has been ended. Refer to your operating system documentation for further details." can also be reported."
the CR is fixed on ASE 15.7 SP50 (aka ESD#5) and SP110
Rgds
Tilman