Added NSSM instructions

[+] Added NSSM instructions for installing RustDesk as a service.
[+] Added benefits comparison.

content/self-host/windows/_index.en.md

@@ -1,8 +1,75 @@
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-title: Windows & pm2
+title: Windows & pm2 or NSSM
 weight: 20
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+## A cross roads
+You now either have two choices, you can either use pm2 (easier) or NSSM (a bit harder) to start the rustdesk server
+There are some benefits to using NSSM:
+- Backwards compatibility with older windows (Windows Server 2008R2/Windows 7 and earlier although untested).
+- Ideal for Windows Server
+- Auto start on boot without login (The user who created the startup entry does not need to log on for it to start).
+- Running both binaies as Services.
+- Standalone (no dependency on nodejs)
+
+While the benefits of pm2 include:
+- Good idea if you run the server on the same computer as your main work computer
+- You logon regularly to the user that created the rustdesk startup entry
+- More user friendly
+
+## Installing using NSSM
+
+### Installing NSSM
+Please [download](http://nssm.cc/release/nssm-2.24.zip) and extract NSSM select the appropriate 
+architecture to your windows system (if x86 use the contents of the win32 folder, if x64 use the 
+contents of win64 folder). It is also best practice to move the binary of NSSM into the 
+`Program Files\NSSM` (NSSM once started as a service, it cannot be moved from the directory it was placed in.
+thus it is best to tuck it away in Program files) directory of your Installation drive (Usually the C drive). 
+It is also advisable to add the path (such as `C:\Program Files\NSSM`) to the path variable. 
+
+
+### Checking if NSSM is installed properly
+If you've done everything correctly the folder `C:\Program Files\NSSM` (in this example I use the C: 
+drive but you can use whatever drive you installed windows to or whatever path you desire) should 
+only contain the file `nssm.exe`. 
+
+We will be using `C:\Program Files\NSSM` in this example
+
+Open Command prompt and run `nssm` if you see a help page you are ready to move onto the next step
+
+### Run hbbr and hbbs
+Download the Windows version of [server program](https://github.com/rustdesk/rustdesk-server/releases). 
+Unzip the program to the `C:\Program Files\RustDesk Server` (or anywhere you desire just make sure it
+doesn't change after the service is installed). now get back to Command prompt
+
+We will be using `C:\Program Files\RustDesk Server` in this example
+```cmd
+nssm install "RustDesk hbbs service" "C:\Program Files\RustDesk Server\hbbs.exe" -r 0.0.0.0 -k _
+nssm install "RustDesk hbbr Service" "C:\Program Files\RustDesk Server\hbbr.exe" -k _
+```
+**Note:**
+- You can change `RustDesk hbbs service` to whatever you desire to name hbbs the service
+- You can change `RustDesk hbbr service` to whatever you desire to name hbbr the service
+- You can change `C:\Program Files\RustDesk Server\hbbs.exe` to wherever you placed the rustdesk binaries
+- You can change `C:\Program Files\RustDesk Server\hbbr.exe` to wherever you placed the rustdesk binaries
+- You do not need the `-k _` option which is optional, it's just for better security
+
+**Command templates:**
+
+The command template in case you just want to copy and paste and edit.
+
+```cmd
+nssm install <Desired hbbs servicename> <RustDesk hbbs binary path> <RustDesk hbbs arguments>
+nssm install <Desired hbbr servicename> <RustDesk hbbr binary path> <RustDesk hbbr arguments>
+```
+
+**Done !**
+
+(The method above has been tested on Windows Server Core 2022 Standard).
+
+## or
+
+## Installing using pm2
 
 ### Install NodeJs