You know, create a local account on a remote computer and add that account to the Administrators group on that remote computer.
After downloading and installing, look for "Add Local Admin Remotely" in your Start menu. Run it as an account that has administrative privileges on the remote computer, then follow the prompts.
If the account you specify already exists, the password will be set to whatever you chose. If the account does not exist, it will be created. The account will then be added to the Administrators group on the remote computer.