Disclaimer
A disclaimer may take effect as a term of the contract between the person making the disclaimer and the person who is thereby prevented from suing.  This kind of disclaimer is, for example, invariably found in the 'terms and conditions' that a software user is confronted with when first installing the software. There will often be term(s) excluding any liability for any damage that the software might cause to the rest of the user's software and hardware.  By clicking "I Agree" in the dialogue box, users are agreeing to this disclaimer as matter of contract between themselves and the software company.