I am not getting User Environment Variable Value

Question

Hi Team,
I have been Trying to recover variables values using an anonym procedure from Windows XP SP3
I have already executed following procedure.
BEGIN
DECLARE
gf_filelog UTL_FILE.file_type;
v_file_log VARCHAR2 (1024) := ' ';
gv_path_log VARCHAR2 (1024) := ' ';
gv_path_log2 VARCHAR2 (1024) := ' ';
gv_file_log VARCHAR2 (1024) := ' ';
BEGIN
DBMS_OUTPUT.put_line ( 'obteniendo valores of vars: '
|| gv_path_log
|| ' '
|| gv_file_log
DBMS_SYSTEM.get_env ('ORACLE_HOME', gv_path_log);
DBMS_SYSTEM.get_env ('PATH_MODULO', gv_path_log2);
DBMS_SYSTEM.get_env ('FILELOG', v_file_log);
DBMS_OUTPUT.put_line ( 'valores vars ORACLE_HOME: '
|| gv_path_log
|| 'PATH_MODULO:'
|| gv_path_log2
               || ' FILELOG:'
               || v_file_log
gv_file_log :=
v_file_log || TO_CHAR (SYSDATE, 'yyyymmddHH24MISS')
|| '.log';
DBMS_OUTPUT.put_line ( 'Nombre de Archivo creado'
|| gv_path_log
|| ' '
|| gv_file_log
gf_filelog := UTL_FILE.fopen (gv_path_log, gv_file_log, 'w');
DBMS_OUTPUT.put_line ('Archivo creado' || gv_path_log || ' '
|| gv_file_log
UTL_FILE.put_line (gf_filelog,
|| TO_CHAR (SYSDATE, 'HH24:MI:SSSSS')
|| ']--> '
|| 'Prueba de escritura'
|| gv_path_log
|| ' '
|| v_file_log
UTL_FILE.fflush (gf_filelog);
UTL_FILE.fclose (gf_filelog);
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line ( '[reporta_log]Error en :'
|| SQLCODE
|| ' - '
|| SQLERRM
raise_application_error (-20000,
'[reporta_log]Error en :'
|| SQLCODE
|| ' - '
|| SQLERRM
END;
END;
I show you data result after procedure was excecuted.
obteniendo valores of vars:
valores vars ORACLE_HOME: E:\oracle\product\10.2.0\db_1PATH_MODULO: FILELOG:
Nombre de Archivo creadoE:\oracle\product\10.2.0\db_1 20111122171625.log
[reporta_log]Error en :-29280 - ORA-29280: invalid directory path
BEGIN
ERROR at line 1:
ORA-20000: [reporta_log]Error en :-29280 - ORA-29280: invalid directory path
ORA-06512: at line 55
I see that only ORACLE_HOME variable value was got, question is why, of course, variable values are already defined as user variables.
Variables PATH_MODULO and FILELOG was defined using windows maintenance variable method, that is :
1.- settings
2.- system
3.- advanced options
4.- environment variables
Here my oracle version
SQL> select version from v$instance;
VERSION
10.2.0.1.0
SQL>
Is this an Oracle Issue or variables would be defined in another way?
ORACLE_HOME VARIABLE was created when oracle engine was installed.
I have got same result after computer was restart.
I appreciate wathever clue.

Answer 1

Ok, that is , I only can read environment variables values, but not variables values at user profile. It happends in unix environment too. So I tried to use another instruction sequence in order to read user variables values.
Regards