Parameters for C$SYSLOG

My program is giving the following error followed by a hard crash when I attempt to write to the system log.

---------------------------
Error
---------------------------
Invalid or missing parameter to "C$SYSLOG"
COBOL error at 000046 in csyslog.acu
("csyslog.cbl", line 50)
---------------------------
OK  
---------------------------

Here is my source code. Do you see what the problem might be on line 50? 

       IDENTIFICATION DIVISION.
       PROGRAM-ID.  CSYSLOG.

       DATA DIVISION.
       WORKING-STORAGE SECTION.

      * Opcodes for C$SYSLOG
      * These codes were copied from acucobol.def.
       78  CSYSLOG-OPEN                        VALUE 0.
       78  CSYSLOG-WRITE                       VALUE 1.
       78  CSYSLOG-CLOSE                       VALUE 2.

      * Priority codes for C$SYSLOG
      * These codes were copied from acucobol.def.
       78  CSYSLOG-PRIORITY-SUCCESS            VALUE 0.
       78  CSYSLOG-PRIORITY-INFORMATION        VALUE 1.
       78  CSYSLOG-PRIORITY-WARNING            VALUE 2.
       78  CSYSLOG-PRIORITY-ERROR              VALUE 3.

      * Data items to be used as C$SYSLOG parameters.
      * The NULL value in CSYSLOG-DOMAIN means "local machine".
       78  W-CSYSLOG-DOMAIN                VALUE NULL.
       78  W-CSYSLOG-APPNAME               VALUE "App name goes here".
       01  W-CSYSLOG-PRIORITY PIC S9       VALUE ZERO.
       01  W-CSYSLOG-MESSAGE  PIC X(1024)  VALUE SPACE.

      * Other working fields.
       01  W-CALL-STATUS           PIC S9(2).
       01  W-PROG-PATHNAME         PIC X(260).
       01  W-TRAILING-SPACE-COUNT  PIC S9(9)  COMP.
       01  W-TMP-STRING-LENGTH     PIC S9(9)  COMP.
       01  W-SUCCESS-MESSAGE       PIC X(1024)      VALUE SPACE.
       01  W-INFO-MESSAGE          PIC X(1024)      VALUE SPACE.
       01  W-WARNING-MESSAGE       PIC X(1024)      VALUE SPACE.
       01  W-ERROR-MESSAGE         PIC X(1024)      VALUE SPACE.

       PROCEDURE DIVISION.
       MAIN-ROUTINE.
           PERFORM SETUP-TEST-DATA THROUGH SETUP-TEST-DATA-EXIT

      *    Open the system log.
           CALL "C$SYSLOG"
             USING CSYSLOG-OPEN, W-CSYSLOG-DOMAIN, W-CSYSLOG-APPNAME
             ON EXCEPTION CONTINUE
           END-CALL

      *    Write a "Success" log entry.
           MOVE CSYSLOG-PRIORITY-SUCCESS TO W-CSYSLOG-PRIORITY
           MOVE W-SUCCESS-MESSAGE TO W-CSYSLOG-MESSAGE
           CALL "C$SYSLOG"
             USING CSYSLOG-WRITE, W-CSYSLOG-PRIORITY, W-CSYSLOG-MESSAGE
             ON EXCEPTION CONTINUE
           END-CALL

      *    Write an "Information" log entry.
           MOVE CSYSLOG-PRIORITY-INFORMATION TO W-CSYSLOG-PRIORITY
           MOVE W-INFO-MESSAGE TO W-CSYSLOG-MESSAGE
           CALL "C$SYSLOG"
             USING CSYSLOG-WRITE, W-CSYSLOG-PRIORITY, W-CSYSLOG-MESSAGE
             ON EXCEPTION CONTINUE
           END-CALL

      *    Write a "Warning" log entry.
           MOVE CSYSLOG-PRIORITY-WARNING TO W-CSYSLOG-PRIORITY
           MOVE W-WARNING-MESSAGE TO W-CSYSLOG-MESSAGE
           CALL "C$SYSLOG"
             USING CSYSLOG-WRITE, W-CSYSLOG-PRIORITY, W-CSYSLOG-MESSAGE
             ON EXCEPTION CONTINUE
           END-CALL

      *    Write an "Error" log entry.
           MOVE CSYSLOG-PRIORITY-ERROR TO W-CSYSLOG-PRIORITY
           MOVE W-ERROR-MESSAGE TO W-CSYSLOG-MESSAGE
           CALL "C$SYSLOG"
             USING CSYSLOG-WRITE, W-CSYSLOG-PRIORITY, W-CSYSLOG-MESSAGE
             ON EXCEPTION CONTINUE
           END-CALL

      *    Close the system log.
           CALL "C$SYSLOG"
             USING CSYSLOG-CLOSE
             ON EXCEPTION CONTINUE
           END-CALL

           GOBACK 0.

       SETUP-TEST-DATA.
      *    Get the pathname for the currently executing program.
           CALL "C$MYFILE"
             USING W-PROG-PATHNAME
             GIVING W-CALL-STATUS
             ON EXCEPTION CONTINUE
           END-CALL
           IF W-CALL-STATUS = -1
               MOVE "[program pathname could not be retrieved]"
                 TO W-PROG-PATHNAME
           END-IF

      *    Compute the length of the program's pathname.
           MOVE 0 TO W-TRAILING-SPACE-COUNT
           INSPECT W-PROG-PATHNAME
                   TALLYING W-TRAILING-SPACE-COUNT
                   FOR TRAILING SPACES
           COMPUTE W-TMP-STRING-LENGTH
             = FUNCTION LENGTH(W-PROG-PATHNAME)
             - W-TRAILING-SPACE-COUNT

      *    Compute the success/info/warning/error messages.
           STRING
             "Some successful outcome was logged by "
             W-PROG-PATHNAME(1:W-TMP-STRING-LENGTH)
             "." DELIMITED SIZE
             INTO W-SUCCESS-MESSAGE
           END-STRING
           STRING
             "Some information was logged by "
             W-PROG-PATHNAME(1:W-TMP-STRING-LENGTH)
             "." DELIMITED SIZE
             INTO W-INFO-MESSAGE
           END-STRING
           STRING
             "Some warning was logged by "
             W-PROG-PATHNAME(1:W-TMP-STRING-LENGTH)
             "." DELIMITED SIZE
             INTO W-WARNING-MESSAGE
           END-STRING
           STRING
             "Some error was logged by "
             W-PROG-PATHNAME(1:W-TMP-STRING-LENGTH)
             "." DELIMITED SIZE
             INTO W-ERROR-MESSAGE
           END-STRING
           .
       SETUP-TEST-DATA-EXIT.
           EXIT.

The commands used to compile and execute were: 

ccbl32 -Ga csyslog.cbl
wrun32 -d csyslog.acu

The operating system is 64-bit Windows 7. The AcuCOBOL version is a 32-bit build of version 9.2.1.

Thanks in advance for any assistance!