Remove these lines:
set oFile = oFilesys. GetFileName(oFileADVFEE.Name) –" Microsoft VBScript runtime error: Object required: '[string: "ADVFEE.txt"]'"---errror here
wscript.echo "File Name " & oFile
and use the oFileADVFEE.Name directly:
wscript.echo "File Name " & oFileADVFEE.Name