Sorted:

Calling Objective-C methods-Collection of common programming errors

What's a good way to serialize Delphi object tree to XML–using RTTI and not custom code?-Collection of common programming errors

objective-c static/class method definition – what is the difference between “static” and “+”?-Collection of common programming errors

dynamically built SiteMapPath in asp.net-Collection of common programming errors

C# Process <instance>.StandardOutput InvalidOperationException “Cannot mix synchronous and asynchronous operation on process stream.”-Collection of common programming errors

Runtime.getRuntime().exec returns empty string-Collection of common programming errors

Need a video format that will play on Windows XP/7 out of the box-Collection of common programming errors

What are good sources of knowledge / information about the implementation of objective-C and cocoa/ cocoa-touch?-Collection of common programming errors

problem about typelibrary-Collection of common programming errors

problem about xcode3to4-Collection of common programming errors