[Free] Online Virtual PC [No Registeration]

A few months ago, I discovered a free, web-based virual PC. It takes about 5 seconds to load, and needs no registration(Guest Account). However, you can register and log into your Account in the Windows welcome screen of the VM.

So here's the site: http://www.silveos.com/

Pros:

• It will be a great alternative to those who, like me, do not have hardware resources to run VMs smoothly.
• You can execute files your local file-system or from the Internet by:
  Start Menu>Install Program.
• Just go to the site and your OS starts loading.
• Registration is optional, but recommended!
• It's free!
  

Cons:

• I am only half convinced on how secure it is.
  
  This is what the website tells about it's security arrangement:
  

  Quote:Application runs in Silverlight’s security sandbox. By default code is restricted from accessing user's file system or doing anything that could hurt user's machine.

  
  HF users who know about "Silverlight’s security sandbox", please leave your openions.
• Internet browsing sucks...
  

It tool me 45 minutes to write this up. At-least spent 45 seconds to post your replies.

More coming soon!