Creating your own URL protocol in Windows allows you to define custom behavior when a specific protocol is used in a URL. Here's how to create one:

Steps to Create a Custom URL Protocol

1. Open the Windows Registry Editor:

* Press Win + R, type `regedit`, and hit Enter.

2. Navigate to the Protocols Section:

• Go to HKEY_CLASSES_ROOT in the registry.
• Right-click on HKEY_CLASSES_ROOT and select New > Key.

• Name this key after your custom protocol (e.g., myapp).

3. Define the Default Value:

• Double clickon (Defualt).
• Write any thing about you protocol (e.g,. my app protocol)
• press ok.

• Create New string value.

• add value URL Protocol it's required.

• Now Your app is ready you can check on google chrome but we have add .exe file corresponding to our URL.

4. Create a Shell Subkey:

• Inside your protocol key (e.g., myapp), right-click and create a new key named shell.

• name of the key is shell:

5. Create an open Key Inside the shell Key:

• Right-click the shell key, select New > Key, and name it open.

6. Create a command Key Inside the open Key:

• Right-click the open key, select New > Key, and name it command.

7. Define the Command to Execute:

• Click on the command key, and in the right-hand pane, double-click the (Default) entry. Set the value to the path of the executable you want to run, followed by "\"%1\"" (including the quotes). For example:

• press ok, you protocol created successfully.

8. Creating Test Program

• Creating a program using c to get arguments. you can use any langualge. ```c

include

include

int main(int argc, char *argv[])
{
printf("Argument: \n%s", argv[1]);

getch();
return 0;

}

 * Convert Into Exe using `c++ myapp.c -o myapp.exe`;
 * now you add this exe into command defualt value.

## 9: Test Your Protocol
 * goto chrome and write you *myapp://hello*

![Chrome url](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/sobu5lmupyk24d3olxrw.png)

 * it's open a modal to open url.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/btpf5an364vyu9fkpm4g.png)

 * OUTPUT:- 

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0bg60pf6r3u1fmwbggtj.png)

 * Now you can parse this url and do anyting what you want.

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