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Block Programs from Internet using Firewall

This script helps you block internet access for specific programs using the Windows firewall automatically.

What it does

  • The script blocks internet access for all .exe files in the script's directory and its subfolders.
  • It creates two firewall rules for each .exe file found: one for incoming connections and one for outgoing connections.

How to use

  1. Download this repository.
  2. Extract the downloaded files.
  3. Copy the extracted .bat file to the folder of the program(s) you want to block internet access for.
  4. Run the script as an administrator (right-click on the script and choose "Run as administrator").
  5. Once the script finishes running, you can safely delete the .bat file from the program folder.
  6. Internet access for the specified programs will now be blocked.

How it works

  • The script is written in batch language, a scripting language for the Windows command line.
  • It uses the for and netsh commands to add firewall rules for each .exe file in the current directory and its subdirectories.
  • The for /R command searches through all subdirectories, and %%f represents the current file path.
  • Firewall rules are added using the netsh advfirewall firewall add rule command.
  • Each rule blocks incoming and outgoing connections for a specific program.
  • The rule's name, direction, and program path are specified in the command.
  • The script includes the setlocal enableextensions command to enable extensions and cd /d "%~dp0" to change to the script's directory.
  • A pause command is included so you can review the results before closing the command prompt.

Flowchart

graph LR

subgraph Initialize
    A[Set Echo Off]
    B[Enable Local Extensions]
    C[Change Directory]
end

subgraph Loop
    D[Loop through files *.exe]
    E[Add Outbound Firewall Rule]
    F[Add Inbound Firewall Rule]
end

G[Display Pause Message]

A --> B --> C --> D --> E --> F --> D
D -->|Done| G
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Note: Be cautious when using this script, as it blocks all internet access for the specified programs. Make sure to have backup copies of the files you want to block.

Support

You can support me by buy me a coffee if u like to.