Using NSISdl or InetLoad with Variables

Hi,

i try to use this but it doesn't work, what do i do wrong?

StrCpy $R0 "http://www.domain.com/file.zip"
StrCpy $R1 "$INSTDIR\file.
NSISdl::download "$R0" "$R1"

plz help me 🙁

well, problem fixed... 😉