Autodesk Vault

[#1]

I can not find these folder or something equivalent in version 2012.

This folder is to locate DOT NET aplications

"Deploy the built files to %programData%\Autodesk\Vault 2012\Extensions\HelloWorldVB
NOTE: The %programData% variable may not be set for all operating systems. 
In Windows XP and 2003, this is usually "C:\Documents and Settings\All Users\Application Data".
In Vista and above, this is usually "C:\ProgramData"

Thanks

[#2]

The %programData% folder should be there already as part of Windows.  The \Autodesk\Vault 2012\Extensions might not be there if this is the first extension.  So you will have to create that part.

[#3]

Doug,

Thank you very much. 

Now i Have this error:   "error loading extension hello world"  when i try to lauch Vautl Explorer

[#4]

Have a look at this article:  http://justonesandzeros.typepad.com/blog/2011/05/extension-deployment-checklist.html