is there any software/tool to power pack win9x/me or make it unattended just like what nlite did?

thanks

I am not quite sure what exactly you mean by that.
But if you mean if it is possible to crunch down windows files in size,then the answer is yes.
UPX works perfectly for this.
There is also an executeable packer called FSG (Fast Small Good) which packs even better than UPX but
I am not sure if it works on Win9x ...

Yeah, its called Windows 98 Resource kit, it's on every windows 98
installation CD...

After you have installed it, you can run various programs within the reskit
to not only integrate drivers, but also create an inf file called msbatch.inf
using the Batch98 program within the reskit..
With batch98 you can also import registry tweaks..