Guys, bkw gave me some homework and now I have a few questions. I notice that in switch-types.h there are all sorts of typedef struct statements that create a switch_ version of the corresponding apr_ type. However, I've also noticed that scattered throughout the source that there are numerous occasions where the apr_ namespace is used even when there is a switch_ equivalent available. Example: using apr_pool_t instead of switch_memory_pool_t in mod_openmrcp.c. Questions: Is it FS standard policy/best practices always to use the switch_ namespace? Are there legitimate situations where one would prefer apr_ instead of switch_? Thanks, MC P.S. - If there are cases where apr_ is used when there are switch_ equivalents, does that mean there is an impending codebase cleanup project to make everything consistent?