mod_perl 2, the next generation of the Apache Perl module, gives you full access to the Apache 2 internals via the Perl programming language, just as mod_perl 1 gave you access to Apache 1. New features in Apache and Perl make mod_perl 2 even more powerfu and useful than before, allowing you to quickly write and deploy fast, robust web applications. As with any major upgrade, there are new features and key changes to mod_perl from the 1.x generation. The mod_perl 2 User"s Guide explains these key changes nd demonstrates the tools you can use to port modules and migrate your existing code. Improvements in Apache 2 and mod_perl 2 include: * Multi-Processing Model modules (MPMs) allow for process-based and thread-based processing models. The addition of thred support makes mod_perl viable on Win32 and introduces the potential for improved performance on other platforms. * Protocol Modules give Apache and mod_perl the potential to serve any protocol, not just HTTP. * A mod_perl 2...