# Metadata
Platforms: desktop, server OS: mac, windows, linux Introduced: 1.0 Security:
# Syntax
get the externalPackages of stack
# Examples
put the externalPackages of stack "Main" into field "Package List"
# Description
Use the externalPackages property to find out whether a particular external is available for use in handlers, or to list all the available external.
# Tags
# See
- **keyword:** line - **property:** externalCommands, externalFunctions, destroyWindow, externals - **object:** stack - **glossary:** external, property, handler