Picture of Create your own operating system!

Nearly every true computer geek has, at some point, wanted to write an operating system. However, writing a custom kernel and other bits takes years of study, experience and patience. If you intend to keep your sanity, then the best course of action is to use someone else's code.

Cosmos*, or C# open source managed operating system, is a pre-made kernel that provides you with "OS legos" that allow you to quickly and easily create your own operating system.

You will need:

@ Microsoft Visual C# 2008.

@ A knowledge of the C# programming language (don't worry if you don't have this, it's a pretty easy language).

@ The Cosmos user kit (milestone 4).
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Step 1: Getting the software

Picture of Getting the software
Let's do a run down of the necessary software mentioned earlier.

Microsoft Visual C# can be downloaded free if you get the express edition. You can download it at You can also download the entire Visual Studio including visual basic and visual c++ as an ISO image (these can be tricky, see below for details on reading ISO images). Even on a blazing fast computer, downloading visual studio will take two hours at most, though.

WARNING: make sure that you get the 2008 edition and not 2010. This may seem backwards, but the Cosmos user kit has yet to support 2010.

The cosmos user kit is the platform that we will write our OS in. It's an all-in-one micro-kernel operating system that is written in 100% C#. You can download it at

A note about ISO images:

If you opted to download the entire visual studio, then you're going to need to read the ISO image file. An ISO image is a map of a virtual DVD, using the same encoding as any other disk. You have two option: Use a program like nero or roxio to burn the image to a CD-ROM then insert that disk into your computer and download it (The latest Windows XP comes with Roxio, and Windows 7 comes with Nero pre-installed. Other than that, you will almost certainly find something on your computer that will burn a CD. Explore a bit), or you can use Daemon tools lite edition to read the file directly.

Daemon tools lite is free and can be found at

A: After downloading it, running the setup program, and re-booting, fire up Daemon tools and click Add File (the picture of the CD with a plus sign).

B: Find the image, and open it.

C: Now, select the file and click Mount. A popup (see pic')  will show you some options, click "run setup.hta". This will install Visual Studio. Alternatively, you can find setup.hta in the virtual drive that was created, located in My Computer under Devices with removable storage.
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vivekb121 days ago

hey guys . I am Vivek Bamnelkar from India. I am also looking for a team . I have everything from plan to strategy , layouts , prototype projects and other stuff ready . I want to launch a company like "Apple" . The last thing i need is skilled , creative ,people . With your cooperation we can do it all together guys and become millionares!!

This is a golden opportunity.

if interested contact me

i wanna join

can you also do this for android devices
TopHatP1 month ago

Hey; is anyone interested in designing a NEW operating system? (yes, of course) I plan for it to be a simple beginner's project, requiring minimal involvement (not complex). I need a few helping hands. I happen to know C 98, C++11 (working on 2014) and am learning NASM assembler. I need someone who knows Assembler and Linux systems, in general. If you can help (and are interested), please contact me:

HafsaR1 month ago

i also wanna make my own o.s. kindly help me...

Friends I want to make a team .I have an idea
I am looking for a team
We should work together and make our new productions..
contct me

Love this, i would love to make an OS for myself, something simple and without IE and such unnecessary programs.. Something that would be good for Gaming, Coding, 3D Modeling, Animating and such.

Friends I want to make a team .I have an idea
I am looking for a team
We should work together and make our new productions..
contct me

Friends I want to make a team using. I have an idea,
I am looking for a team
We should work together and make our new productions

JoeyA11 month ago

I'm already working on an operating system. It's called Fallen OS, and if you want to help, I'm looking for someone who knows assembly. Contact me at It's Gaming based, and uses a GNOME interface.

JoeyA11 month ago

I'm already working on an operating system. It's called Fallen OS, and if you want to help, I'm looking for someone who knows assembly. Contact me at It's Gaming based, and uses a GNOME interface.

Tornadot1 month ago
Friends I want to make a team using (Team Foundation Server) in Microsoft
Visual Studio 2010 Professional.
I am looking for a team
We should work together and make our new productions..
Sir, I would also like to be part of that team.  But I only have visual basic 2010 express  and visual studio 2012 express. If you could please contact me at, that would be nice. Thank you.
I am a extreme programmer. I hard code 24/7. No school. Would be cool if we can share some tips, work on something awesome;
RobinH2 lilses3 months ago

hey. i need help making an os. can we team up sometime. i have some schooling with software (self and classroom) but, I would like some help. I am just learning JavaScript and C++, so i know the basics. Plz and Thanks

Eth.main RobinH22 months ago

I can team up with you if you want :) I am a good programmer trust me :) add me on facebook: and anyone can add me if they need help or want to team up with me anytime,

Hey i could work with you hit me up on kik at AndroDevcd I know C++, javascript, really good at java..xml..
But before giving you the detail about what to do ....
Introduce yourself because we have to know each other...
I am going to sending you a pending request on yahoo.
So that we can come in contact with each others..

I would love to join you all ! i am CEO of Vision™

If anyone want to talk ! they can live chat on my Web ! :)

Good email me at

Good spirit...I love to do this..inbox me now and lets start something we become more than what we think in a few years to come..


I'm Joe, I am a 13 year old programmer with medium visual basic knowledge.

I can make programs like advanced web browsers, database tools, system information and tweaking utilities. etc. Have had about 7 years computer technic experience and about 2 years programming experience. (Self taught.)

Contact me if you please,

Joe Channing

Hi I'm Aaron. I have no computer programming knowledge but I have some really great ideas for UI design, but the problem is that I have no way to display them or ever have them come to fruition without someone with extensive programming knowledge. Thanks!

Hi! I have a bit of skill on Visual Basic Programming, i can make medium difficulty Windows Applications, not a big fan of Visual Studio Online.

In a scale if 1 to 10, 1 being a dude who just made a .bat app, 10 being the best programmer at Microsoft, i think i'm a 5, 6. I'm learning C# at the moment!


Hi I'm Zac. I'm currently studying IT which involves programing, I'm
also studying python on Linux and JavaScript on mac, i have skills in HTML & CSS,
although i am still learning i have big aspirations and i would love to
join your team.

My name is Rik. I am interested in helping your project. My skills are to make microsoft executable files work in MAC OSX. I know a bit of html. Can create website. Also create small mac apps. Email-

i would like to be part of the team.
im a great inventor and i know how to reach the people if we need to.
Introduce yourself!
And then i will tell you what to do...

Hi ,This is vinupriya.i love programming and i am intrested in creating a os.

I am really intrested in joining your team.

My email

Asalamualikum, My Name is Syed Hassaan Abdullah.Iam from India. Iam a class 12 student and I want to work with you...

Okay but before i tell you what to do..
Let,s introduce yourself so we will come in contact with each other..
Sorry, But it is necessary...

Hi! Im Brady Phillips. I am from America and currently a sophomore in high school who is strongly wanting to learn programming. I have a good knowledge of programming and would like to expand my nowledge and get some more experience on a team under my belt. It would be great to have other people who can help me achieve this. I am strongly interested in joining your team. Contact me: Thanks!



Always with you bro

Me too i wanted to develop an operating system but i also need a team

So if this is our chance .. Lets do this


My Life




Please I don't come here often so please email

Thank you


hassaanagmad can i get your information?
before i will give mine?

i also needing a help.

i have a BiG Plan and i also looking for a good team.

contact me @

I am a good programmer. Contact me

I will let you know my works and experiences. I am interested to join your team

Hi,I think that's a good idea hassaanahmad,lets work together
But Introduce yourself!
And then i will tell you, what to do .
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