Cannot register '%1' since another exclusive instance is running

Error constant SQLE_SAME_EXCLUSIVE_APP_RUNNING
ODBC 2 State 42000
ODBC 3 State 42S02
Parameter 1 Name of the application.
Severity 16
SQLCODE –782
SQLSTATE 5RW21
Sybase error code 13792
Probable cause

You attempted to start an application but another exclusive instance of the same application is already registered.