A better way to add windows hosts file entries

I need you to create a program to route traffic destined for certain domains to specific IP addresses with minimal fuss. I want to be able specify in a local .txt file called todo.txt in working directory the whole content of the Windows hosts file that need to be written. The program you will make should be put in working directory and when run will read the content of the todo.txt and generate an .exe file called output.exe. Output.exe when run will modify Windows hosts file of the computer it was run from without asking for Administrator rights.

Windows hosts file is location: C:\Windows\system32\Drivers\etc\
The file is called: hosts