A wallet needs to be configured for this instance of Application Express

Question

hi
I m very new to APEX. I could create web service client with wsdl. But when service is on https i get message
"a wallet needs to be configured for this instance of Application Express".
I have created wallet using OWM (10.2.0.1.0) at location c:\del_sometime
Using admin i configured APEX instance settings wallet as
Wallet Path = file:c:\del_sometime
And checked in database too
SQL> ALTER SESSION SET CURRENT_SCHEMA = APEX_030200;
Session altered.
SQL> SELECT
2 APEX_INSTANCE_ADMIN.GET_PARAMETER('WALLET_PATH')
3 from dual;
APEX_INSTANCE_ADMIN.GET_PARAMETER('WALLET_PATH')
file:c:\del_sometime
Any idea whats wrong? I am following steps from http://download.oracle.com/docs/cd/E14373_01/admin.32/e13371/adm_wrkspc.htm#BABFBJEA

Answer 1

also whe I try following i keep getting error failure to open file. I am on XP and file is present with proper permissions.
SQL> SELECT utl_http.request('https://support.oracle.com/',null,'file:c:\del_sometime\') from dual;
SELECT utl_http.request('https://support.oracle.com/',null,'file:c:\del_sometime\') from dual
ERROR at line 1:
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1577
ORA-28759: failure to open file
ORA-06512: at line 1