if you are on unix box and not using sco then this shall help you:

Note:1005046.6
Subject: ORA-00101 AND ORA-00102 USING SQL*NET TCPIP ON A UNIX PLATFORM
Type: PROBLEM
Status: PUBLISHED
Content Type: TEXT/PLAIN
Creation Date: 09-AUG-1994
Last Revision Date: 09-JUL-2001


Problem Description:
====================

You are trying to start an Oracle7 database using a UNIX platform; using MTS
(multi-threaded server) on SQL*Net V2. You are getting error messages
ORA-00101 and ORA-00102.


Problem Explanation:
====================


ORA-00101: "invalid specification for system parameter mts_dispatchers"
Cause: The syntax for the "mts_dispatchers" parameter is incorrect.
Action: Refer to the manual for correct syntax.

ORA-00102: "network protocol %s cannot be used by dispatchers"
Cause: The network specified in "mts_dispatchers" doesn't have the
functionalities required by the dispatchers.
Action: Refer to the manual on network protocols supported by the
dispatchers.


Search Words:
=============

ORA-101 ORA-102

Solution: DESIRED PROTOCOL MUST BE PROPERLY LINKED

Solution Description:
====================

Verify that the Desired Protocol has been properly linked.

To relink:

1. Login as oracle
2. cd $ORACLE_HOME/rdbms/lib
3. make -f oracle.mk install

Note: You may also have to relink other product executables.

1. cd $ORACLE_HOME//lib
2. make -f .mk install