Example of setting up an execute-controlled library

The following sequence of RACF® commands illustrates one way you can set up an execute-controlled library. Assume the program is member XCLPGM in program library KBROWN.PGMLIB2.

If program control is not active, enter:
```
SETROPTS WHEN(PROGRAM)
```
After program control is active, it remains active until your installation deactivates it by issuing the SETROPTS command with the NOWHEN(PROGRAM) operand.
Define a data set profile to protect the private program library by issuing the ADDSD command with the appropriate operands. The following command defines a data set profile to protect program library KBROWN.PGMLIB2. The command assigns a UACC of EXECUTE to allow all users to execute but not otherwise access the library.
```
ADDSD 'KBROWN.PGMLIB2' UACC(EXECUTE)
```
Define a specific profile in the PROGRAM class that protects the controlled program. The following command identifies only program XCLPGM as a controlled program.
```
RDEFINE PROGRAM XCLPGM ADDMEM('KBROWN.PGMLIB2'/VOL6A/NOPADCHK)
```
Note: If you intend to run in ENHANCED program security mode, add APPLDATA('MAIN') to this RDEFINE command.
Refresh the in-storage program control tables by issuing the following command.
```
SETROPTS WHEN(PROGRAM) REFRESH
```
This ensures that the changes take effect immediately.