The loader is one file

Windows 10 or 11, 64-bit. Sign in with your key, press Load, and the driver waits for your game. This is the only download — the parts it runs are fetched when you press the button, so a fix reaches you without one.

What happens after you open it

1. Download the file

   Put it anywhere — the Desktop is fine. Nothing else needs to be installed beside it: no driver, no mapper, no runtime.

2. Redeem your key

   A key turns into an account the first time it is used. The loader asks for the key, then for a username and a password to put on the account it creates. If you have signed in before, sign in instead.

3. Press Load

   The loader fetches the driver and the mapper for this session, maps the driver into the kernel, and waits for your game. Nothing is fetched before you press it, and nothing stays on disk afterwards.

Before you run it

Run it as an administrator

It writes to the kernel, and Windows refuses that without elevation.

Windows will warn you once

SmartScreen, because the file is not signed by a certificate authority. More info, then Run anyway. That warning is what every unsigned executable looks like on a fresh machine.

Antivirus may object

It maps a kernel driver, and that is the whole of the product. An exclusion for the file, or another machine, is the honest fix.

Do not rename it

The driver attaches to a process called exactly shampiss-um.exe. Renamed, it maps and then finds nobody to talk to.

You need a key

Shampiss is sold by subscription, one key per customer. If you do not have one, ask where you were given this link.

Windows 10 or 11, 64-bit, and an account that is still in date — the loader checks in every few minutes, and stops working when the subscription does.