Its super easy to do it in windows, have them both on the same machine. Needless to say that the machine has to be powered on 24/7.

Follow this guide, its a bit similar with a few changes -->   MN Guide of another Coin
The procedure is the same, just replace the amount of needed coins (1000 for HLM), use and forward the port (9009) proposed in the HLM configuration.

or fuck it, i'll just write it down for you

Prerequisites:

    Helium Wallet running on your local computer with 1000 HLM for each masternode (amount of HLM needed for a masternode)
    Static IP Address with open ports for masternodes

Preparing Helium Masternodes

1 – Choose the place where you will hold you masternodes directories (you need some freespace for every masternode)
2 – Create folder “HLMMN1” there
3 – Copy file “helium-qt.exe” in folder “HLMMN1”
4 – Create in folder “HLMMN1” new folder “data”
5 – Copy file “blk0001.dat” and folder “txleveldb” in created folder “data” (From your master wallet)
6 – Rename “helium-qt.exe” to the “Heliummn1.exe”
7 – Open “Command Prompt” and type following Command:
8 – Move file “startmn1.cmd” from Desktop to the “HLMMN1” folder
9 – Repeat the process from step 2 for each masternode you want to created, with
changing mn1 to mn2, mn3
10 – Run startmn1.cmd, startmn2.cmd and startmn3.cmd, wait for complete loading
wallets and complete syncing with blockchain
11 – Now you can exit from each running masternode wallets

Prepare Helium Controller Wallet

1 – Open your main wallet where you have your HLM
2 – Go to Receive tab
3 – Press button “New address” and enter “Masternode 1” in Label (do not check “Stealth address”)
4 – Send exactly 1000 HLM to this address
5 – Wait for 1 confirmation of transaction and go to the Debug console
6 – Run command “masternode genkey” and write down generated key (this is your
masternode private key)
7 – Run command “masternode outputs” and write down hexnumbers (this is your
masternode tx) and digit after “:” (this is tx index)
8 – Go to \AppData\Roaming\Helium and edit the masternode.conf or Click Tools then Open Masternode Configuration File and put your MN settings
For example

where


Thus

Additionally, open helium.conf which is in the same folder and put


Configuring Helium Masternodes

1 – Go to “HLMMN1/data” folder
2 – Open ” helium.conf” in Notepad
3 – Add following Lines in there:


Replace PORT with port for your Masternode 1, IP:PORT with your external ip and the same port for you Masternode 1
Replace PRIVKEY with masternode private key you generated with “masternode genkey” in controller wallet for Masternode 1

4 – Save it and repeat process for Masternode 2 and Masternode 3.

Start Helium Masternodes

1 – Now you can start all your masternodes with “startmn1.cmd”, “startmn2.cmd” and “startmn3.cmd”
2 – Go to controller wallet, check that your coins in Masternode 1, 2 and 3 addresses have at least 15 confirmations.
3 – Go to Masternodes tab and switch to the “My Masternodes”
4 – Press “Start All”

Your masternode will be started now.
After some time, click update to see if its in the list and working
correctly.
Pat yourself in the back.