Springboard Series - The Resource for Windows Desktop IT Professionals : Understanding XP Mode
Jeremy Chapman: From the application compatibility perspective, the best thing to do is to get applications that run natively without any virtualization aids, recoding, compatibility fixes or compatibility modes needed. If you own the code and can recode the application, then do that. If you can’t recode a line-of-business application or are not dependent on support for a third party application, you can try compatibility fixes – or “shims” – to remediate the application. Finally, when all these options aren’t possible, then look into legacy operating system virtualization. If you have exhausted all other options for application remediation and intend on using Windows XP Mode, then I’d recommend following all the best practices in the Windows XP Security Compliance Management Toolkit to secure the virtual environment and manage configuration with Group Policy and desired configuration management in System Center Configuration Manager.