Start from the Internet Explorer in XP SP2, Microsoft added a new feature called Information Bar under the name of security. The Information Bar is used to block some actions that were considered “risky” for security, including
Active X Install Prompts
Non-user-initiated Download Prompts
Pop-up Windows
ActiveX Control Blocked Errors
Local Machine Zone Lockdown
For any [...]
While debugging applications, we have to face raw memory in many cases, and knowing some magic number can be a great help to find a clue of the problem.
For example:
0xBAADF00D means uninitialized allocated heap memory.
0xABCDBBBA, 0xABCDBBBB, 0xABCDAAAA, 0xDBCAAAAA … in page heap block structure
There are some more to find at
http://en.wikipedia.org/wiki/Hexspeak
http://en.wikipedia.org/wiki/Magic_number_(programming)#Magic_debug_values
[...]
