The ULC HTTP server reads HTML pages and replaces specific tokens (instances of $WEBHOST) in these pages to enable you to run ULC application servers using a Web browser.
Set the ULCUIHOME environment variable for the location in which you installed the UI Engine:
SET ULCUIHOME=D:\VAST\ULC\UIEngine
Ensure that the file ULCSamples\HttpServer\lib\HttpServer.properties points to the correct document root directory:
HttpServer.documentroot=d:/ulcrt/ULCSamples/HttpServer/lib