Unpackaged Fileset

Is there a way to prevent NSIS from packing all files
into the installer EXE? For a CD-ROM installation I'd
prefer an unpackaged fileset such as

setup.exe
dir1/file1.bla
dir2/file2.bla

It seems I can control the compression with compiler
flags but not whether the files are actually packaged.

Thanks!

You can use CreateDirectory/CopyFiles instead of File instruction.