const src_Folder="d:\test\"
const trgt_Folder="d:\test\"
const src_Filename="abc.txt"
const separator="-"
dtData=date 'or whatever you have in mind e.g. #mm/dd/yyyy# highly localized data
'dtData=#2/13/2004#
stmpDate=cstr(dtData)
'wscript.echo stmpDate
stmpDate=replace(stmpDate,"/",separator) & separator
'wscript.echo stmpDate
set fso=createobject("scripting.filesystemobject")
fso.copyfile srcFolder & src_Filename, trgt_Folder & stmpDate & src_Filename
set fso=nothing