Windows :: SQLLDR - Getting Error?

im getting an error message:SQL*Loader-503: Error appending extension to file (%%g) OSD-04503: Message 4503 not found; No message file for product=RDBMS, facility=SOSD

when i tried to create a bat file that should read and load all files in the folder specified. here's my

@echo off
for /r c:retinfile %%g in (*) Do (
echo Load Data>loaderhdr.ctl
echo INFILE '%%g'>>loaderhdr.ctl
echo append into table INTR_INS_BRET_HDR WHEN (1:1) = "H" >>loaderhdr.ctl
echo (TRANS_ID "intr_ins_bret_hdr_seq.nextval",PROCESS_DATE "to_date(SYSDATE)", REC_TYPE position(1:1^), VERSION_NO position(2:4^), FILE_NAME position(5:44^), FILE_DATE position(45:52^), FILE_NO position(53:54^), PROCESS_TYPE position(55:55^), MERCHANT_NO position(56:70^), FILE_FORMAT_ID position(71:74^), REC_TYPE2 position(75:76^), BATCH_NO position(77:85^), DATE_SENT position(86:91^), TOT_NO_TRANS position(92:95^), SIGN_TOT_BILL_AMT position(105:105^), TOT_BILL_AMT position(96:104^) "decode(:sign_tot_bill_amt, '+', :TOT_BILL_AMT/100, :TOT_BILL_AMT/100*-1)", ESTABLISH_NO position(106:116^), INS_CODE position(117:121^), INS_TYPE position(122:122^)) >> loaderhdr.ctl
call loaddatahdr.bat
)

[code]...

the program should create a CTL file based on the files inside c:retinfile, but its getting an error.