Microsoft® Windows® XP Service Pack 2 (SP2) introduces a set of security technologies that improve the ability of Windows XP systems to withstand malicious attacks, and provides the IT administrator with system wide security configuration capabilities. SP2 is more secure by default, and thus automatically provides Windows XP systems with improved protection. However, because system security becomes more restrictive upon initial installation, SP2 may also expose application compatibility issues. It is important that an investigation into possible application compatibility issues takes place prior to full deployment.
This guidance discusses the security technologies, an application testing process, incompatibility symptoms, mitigation techniques, and deployment scenarios. It makes no assumption about the size or complexity of the network, and is as relevant to peer-to-peer environments as it is to Active Directory environments.
Download: Application Compatibility Guide for Windows XP SP 2
This guidance discusses the security technologies, an application testing process, incompatibility symptoms, mitigation techniques, and deployment scenarios. It makes no assumption about the size or complexity of the network, and is as relevant to peer-to-peer environments as it is to Active Directory environments.
Related Resources
Windows Application Compatibility Toolkit 4.0
The Application Compatibility Toolkit (ACT) has provided methods and information to resolve the most commonly encountered application compatibility issues. The introduction of Windows XP Service Pack 2 exposes compatibility issues in applications not seen previously. ACT 4.0 is specifically targeted at these newly exposed issues and provides vital assistance to anyone deploying Service Pack 2. Previous versions of the ACT provided guidance and tools for developers and IT professionals. Version 4.0 is intended solely for IT professionals planning to deploy Windows XP SP2, or those supporting clients running SP2.

This will help some people to sp2.
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