How to Install MASM in Windows (11, 10, 8, 7)

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How to Install MASM in Windows

Welcome to this tutorial on how to install MASM in Windows! MASM is an assembler developed and maintained by Microsoft, and is a powerful tool for writing low-level code. However, installing MASM on newer versions of Windows can be tricky. In this post, I’ll show you how to install MASM on Windows 10, 8.1, 8, and 7 in just a few easy steps.

MASM is an assembler developed and maintained by Microsoft. MASM (8086) won’t run on Windows 7 or newer versions easily whereas it runs well on Windows XP. That is why in this post I am going to show you how to install MASM in Windows.

This tutorial is valid for Windows 10, 8.1, 8, 7.

So, Let’s begin.

Here are 5 steps to Install MASM in Windows.

1. Setup DOSBox on your OS

First, you have to download DOS Box for your PC

  1. Visit this link (click here)
  2. Click on Download
  3. Wait 5-second download will start automatically
Download DOSBox from Sourceforge
Download DOSBox from Sourceforge

After that install DOSBox if you have any doubts about how to install DOSBox, Here is a Guide on how to install DOSBox on Windows.

2. Download 8086.rar

Visit this link (click here)
Click on Download

3. Setup 8086.rar

Open the zip file that you downloaded in step 2.
Copy the 8086 folders in drive C:

4. Create an Assembly file (.asm)

Open your favorite code editor,
Enter the following code

; Hello World program by 360 Tech Explorer’s

     STRING  DB  'Hello World!',13,10,'$'



     MOV  DS,AX


     MOV  AH,9
     INT  21H 

     MOV  AH,4CH
     INT  21H

Save this file with the “.asm” file extension.

5. Run the Assembly file (.asm) in Windows

  1. Open DOSBox by clicking on it.
  2. Enter the following command in DOSBox
Z:> mount c c:\8086

This command will mount the 8086 directory as a C drive for DOSBox

  1. Then, execute the following command to navigate into drive C
Z:> c:

If you want to write a new assembly file, execute the following command

C:> edit file_name.asm

If you already have the Assembly file, follow the following steps

  1. Copy your Assembly file to the “C:/8086” folder (remember the name)
  2. Then execute the following to run that file
C:> masm your_file_here.asm
C:> link your_file_here.obj
C:> your_file_here.exe

That’s it! You should now be able to run your assembly files using MASM on your Windows PC. I hope this tutorial was helpful in getting you up and running with MASM. If you have any questions or comments, feel free to leave them below. Happy coding!

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