The main differences I can tell between v4, and v5 are
“ADK” means the Assessment and Deployment Kit, which may include Product software, installation instructions, utilities and tools for the preinstallation and deployment of Products.
2.2 OPK and ADK Use Rights
(b) In addition to the limited purpose described in the license terms which accompany the ADK, Refurbisher may use the ADK for the purpose of preinstalling the Product. MS may modify the ADK from time to time. In the event of any conflict between the ADK license terms and this agreement, the terms of this agreement shall control.
2.3 Ordering Software
(b) For Skype Software, Refurbisher will access and download the Skype Software from the Program Web Site
2.3 Ordering Software
(a) For Citizenship licenses, Refurbisher will access, order, and pay for all Software through the Program Web Site.
(b) For Skype Software, Refurbisher will access and download the Skype Software from the Program Web Site.
NEW SECTION ADDED:
2.7 Installation and Distribution of Skype Software
(a) No COAs, Product Keys, or APM
(1) No COA is provided; Refurbisher does not affix a Program COA for this Software.
(2) Refurbisher does not obtain a Product Key from the Program Web Site and does not provide a Product Key with the Refurbished PC.
(3) No APM is provided; Refurbisher is not required to ship any APM with this Software.
(b) Windows 7 and Windows 8.1 only. This Product is designed for use with, and may only be preinstalled and distributed, on Windows 7 and Windows 8.1 Products.
(c) No Distribution into the People’s Republic of China. Refurbisher may not distribute this Product into the People’s Republic of China (PRC).
(d) MS Consent Required. Refurbisher shall not market or distribute the Product in any way in connection with or in any way relating to any real-time internet communication, voice communication and video communication functionality of any kind, with similar functionality and features as the Product unless expressly granted by MS.
(e) Compliance with Local Laws. Certain features of this Product may be subject to varying local laws. When distributing this Product, Refurbisher must comply with all local laws. Refurbisher is solely liable for any claims or costs in connection with its distribution of this Product that does not comply with local laws.
Section Removed:
2.8 End of License – Continued Distribution. Microsoft Office Basic 2007 and Microsoft Office Home & Student 2007 are no longer offered through the Program and therefore are not available from the Program Web Site or from an Authorized Distributor. Refurbisher may continue to distribute Microsoft Office Basic 2007 and Microsoft Office Home & Student 2007 that are in its inventory on August 1, 2013, until the earlier of the end of this agreement or termination of Refurbisher’s right to distribute Microsoft Office Basic 2007 and Microsoft Office Home & Student 2007.
New section added
8.6. Anti-Corruption and Anti-Money Laundering
(a) Compliance with Anti-Corruption Laws. Refurbisher shall conduct itself with high ethical standards and comply with all applicable anti-corruption and anti-money laundering laws, including the United States Foreign Corrupt Practices Act, of the countries/regions in which they operate.
(b) Enforcement and Reporting. In addition to its rights and remedies under applicable agreements, if Refurbisher violates this policy, MS may refer Refurbisher to U.S. or foreign
authorities for criminal prosecution or other enforcement action, or bring suit for damages. Refurbisher may contact Microsoft’s Anti-Corruption Alias (ANTICPT@microsoft.com) for the Business Conduct Alias (BUSCOND@microsoft.com) with questions or requests for further information or guidance.
The remainder is nearly identical, from a quick skim of the document.