Forms :: File Transfer From Server Directory To Client?

I write a file on database server by following

CREATE OR REPLACE DIRECTORY TEST_DIR AS 'c: emp'
GRANT READ, WRITE ON DIRECTORY TEST_DIR TO myuser
SQL> select * from all_directories;

OWNER DIRECTORY_NAME
------------------------------ ---------------------
DIRECTORY_PATH
----------------------------------------------------
SYS TEST_DIR
c: emp
SYS PUBLIC_DIR
E:PUBLIC_dir

and then

PROCEDURE run_query(p_sql IN VARCHAR2
,p_dir IN VARCHAR2
,p_header_file IN VARCHAR2
,p_data_file IN VARCHAR2 := NULL) IS

[code]...

but I get error wut_118.