3. License
3.1 Subject to Your compliance with these API Terms, Skype grants to You a limited, non-exclusive, non-assignable, non-sublicensable, non-transferable right to use the Skype Desktop API for a Permitted Purpose, as defined in paragraph 3.3 below.
4. Restrictions
4.2 Without limiting the generality of the foregoing, you shall ensure that Your Software Application or Hardware Device (as applicable):
(viii) does not attempt to modify the Internet Communications Software user interface in any way (“User Interface”);
4.3 Without the prior written consent of Skype, You will not remove or hide (save as permitted in API command "set silent_mode on"),
modify, take over
or otherwise alter the User Interface. At all times, You will comply with the requirements and specifications relating to application design and use and presentation as stated in Paragraph 5 below.
5. Branding and Marketing
5.1
You hereby specifically acknowledge that Your rights to use the Skype Desktop API are strictly subject to Your full compliance with these API Terms, including the following instructions related to promotion, marketing and design of Your Software Application or Hardware Device (as applicable), and
any breach of any provision of these API Terms or any applicable Additional Terms shall give rise to automatic right of termination by Skype.
6.
At all times, You must constantly monitor the Skype Website to ensure You are aware of any changes in the API Terms, the Skype Terms of Use or any other applicable Additional Terms. In the event You cannot agree on any changes in any applicable legal document, You will immediately cease any and all use of the Skype Desktop API and, where applicable, any and all use of the Internet Communications Software.
From:
http://developer.skype.com/certify-market/legal/d...p-api/terms-of-use