Windows offline installer missing install.bat

I downloaded rust-1.30.1-x86_64-pc-windows-msvc.tar.gz
Unzipped using 7 zip.

I want to install it locally without needing admin permissions

However, there is no install.cmd in it. It only has Not sure what is the use having in windows download?

Can the offline download not work simply by updating path variables?

The offline download cargo run is unable to find std crate…Not sure how to set up environment variables for crates (besides adding cargo\bin;rustc\bin to path)