How do you access the raw protocol? I'm not familiar with this.

I tried getblock "hash", but it seems like I can only get block that I already have in my disk, I want to get this function working without downloading the whole blockchain. Is there any way to connect to some kind of server and use this method on this server ?

TL;DR, I want to compile my own bootstrap.dat file that contain only blocks from a specific block number for example only blocks between 130000 and 140000, all this without having the blockchain in my hard drive.

I want to know if there is a way to download specific block numbers without download the whole blockchain.

Edit: I know that I can use bitcoin client with getblock "hash" function, but this require that the block with that "hash" to be in the hard drive, which I don't. So I'm looking for a similar function of getblock "hash" which doesn't require block to be in the hard drive, but instead it download it from some server or other peers.