The BLSCECT member specifies, through embedded parmlib members, the names of IBM-supplied exit routines. The routines analyze and format dump and trace data. While analyzing a dump or trace, you can enter interactive problem control system (IPCS) subcommands to run the routines.
IPCS accesses the BLSCECT parmlib member through the IPCSPARM DD statement. If you allocate FILE(IPCSPARM), IPCS uses this data set for BLSCECT and the embedded parmlib members. If IPCSPARM is not allocated, the current concatenation is allocated, used, and then freed.