The Virtual Store resides in following path

C:\Users\<userid>\AppData\Local\VirtualStore\Program Files\

 

Another way to get to VirtualStore

Put in search or File Explorer addrees bar:

%localappdata%\virtualstore

You might need to show hidden items, File Explorer Select View and check Hidden items

 

 

usefull link
http://www.clipboardextender.com/off-topic/vista-program-files-hide-and-seek