Function            isShareavail - is SHARE installed

  Syntax              boolean isShareavail(void);

  Prototype in        doshk.h

  Remarks             checks if SHARE is installed.

  Return value        returns TRUE if SHARE is installed, FALSE
                      otherwise.

  See also            isAppendavail(), isAssignAvail()

  Example             #include <ibm.h>

                      main()
                      {
                           printf("SHARE is ");
                           if (! isShareavail())
                                printf("not ");
                           printf("installed\n");
                      }