Windows hardware Develop Drivers Kernel-Mode Driver Architecture Design Guide Writing WDM Drivers Managing Input/Output for Drivers Servicing Interrupts Interrupt Service Routines.
Q: What is an impost block? a. a block that is between the column top (capital) and the springing of the rounded arch b. another name for a column c. a section of the clerestory windows. that provides support d. none of these. A: An impost block is: a. a block that is between the column top (capital) and the springing of the rounded arch.
XP SP2 included a castration of the host file - securityfocus.com/archive/1/431032/30/0/threaded Assumed reason is people were using it to block ads while browsing. This is a guess as far as I know Microsoft has never revealed why they did this and why they are rolling it forward to everything since.