usingleOne of my favourite: a basic singleton class from which one can inherit and create other singleton classes.
checkapiAPI calls are checked vor valid results with this methods.
pdhSimple interface to pdh.dll (not complete, but enough for monitoring CPU, no of threads, memory usage ... as you see it in Threads)
dictUnlike TStringList, TDictionaryStrings takes advantage of the sorted property when using Values and Names.
singleinstFull source code for a component which handles single instance requirement, and running in tray abilities