Had anyone encountered this before?

I set the MTS parameters in INIT.ORA as in the following:

LOCAL_LISTENER = LISTENER
MTS_SERVICE = ORCL7
MTS_DISPATCHERS ="(protocol=tcp) (dispatchers=2)"
MTS_MAX_DISPATCHERS = 2
MTS_SERVERS = 1
MTS_MAX_SERVERS = 6

When I try to start up the database, I received this error:

SVRMGR> startup
ORA-00101: invalid specification for system parameter MTS_DISPATCHERS.


The only way I can start the database is when I commented out these parameters. But how can I startup with them?

DB running on Win2k and it's version 8.1.7. Thanks in advance!!