Maybe your IT manager does not allow you to "install" them (despite the fact non of these require installation)?
Well, here's a way for you to use all their tools, without "downloading" them. Introducing SysInternals Live:
All you have to do is open your "Run.." command (or hit
Windows key + R), and type
\\live.sysinternals.com\tools\<tool name>to run any of their tools (full list here).
Technically, it'll still download to your temp directory, run from there and remove itself when closed. Cool.