title: Check which key to hit to boot from USB or CD?
body: <p>I need to check which key the user must hit to boot their PC from a USB key or a CD.</p>
  
  <p>Does it depend on the BIOS maker, or on the maker/model of the motherboard?</p>
  
  <p>I was told about the nice, open-source <a href="http://www.piriform.com/speccy" rel="nofollow noreferrer">Speccy</a> to get some information on the hardware, but is there a library that I could use to get the same info from a (.Net) program and tell users precisely which key to hit on their very own computer?</p>
  
  <p>Thank you.</p>