offtopic pro Vladimíra:
(ze stejného zdroje)

Limited User Accounts

Myth - "Limited User Accounts are a Realistic Security Solution."

Reality - "On a nonmanaged XP machine today, it isn't realistic to run without Administrator privileges. Unlike UNIX and UNIX-like systems such as Linux and Apple Computer's Mac OS X, Windows isn't very useable with a non-Administrator account, largely because so many applications are ignorant of rights and were written to work only with Administrator-level accounts. This is particularly problematic in a home environment, in which XP Home Edition's crippled Limited Account type, designed for children and less-technical users, is virtually useless. In Windows XP, the lame Run As option, virtually hidden under a right-click menu that typical users will never know about, is a poor substitute."
(...)