WSInitialize(), WSDeinitialize() — initialize, deinitialize WSTP

WSOpenString() — open a link specified by a character string

WSOpenArgcArgv() — open a link specified by an argc, argv array of strings

WSActivate() — activate a link

WSDuplicateLink() — duplicate a link

WSClose() — close a link

WSLinkName() — return the name of a link

WSToLinkID(), WSFromLinkID() — convert between link objects and link IDs

WSSetUserData() — install a function to be called when the link is closed

WSVersionNumbers() — WSTP version information