Exchange Libraries are copyrighted Block Explorer .Net Libraries.
Exchange Libraries are marketed through Library Exchange website.
Exchange libraries are installed from Library Hub.
There are paid and free Exchange Libraries.
Library Exchange is website designated to marketing Block Explorer .Net ready Exchange libraries.
Library Exchange contains extensive collection of libraries subdivided into industry specific categories.
For complete list of available libraries click here
Block Explorer .Net registered users can market their own libraries through Library Exchange.
For details click here.
· From Block Explorer .Net switch to Library Hub tab
· From Folder View select top node 
· Click
toolbar button to connect to Library Exchange website
· Select library installation zip file (ExchLibXXXX.zip) from Free or Paid sections and download it to your computer
· Click
toolbar button and select downloaded in previous step library zip file
On initial Exchange Library installation it is in View Only mode and block insertion is disabled.
· From Block Explorer .Net select Library Hub tab
· Select library you want to register
· From Library Info window click Status and select Add New Subscription or Extend License 
· Internet browser window will display your Shopping Cart with the product in it
· Follow instructions displayed
To enable insertion from a paid Exchange Library, users required purchase library subscription (see Product License Registration Process).
Licensed Exchange Library can be modified as follows:
· Blocks can be moved between folders, renamed or deleted
· Library folders can be moved, renamed or deleted
· To protect Exchange Library copyright, blocks and library folders can’t be moved to another library, and can’t be checked out to dwg file or used as X-reference.