Aurigma ActiveX/Java Uploader 8.0.96
Package..::.PackageGuid Property ActiveX/Java Uploader ASP.NET
Gets a unique identifier of the current upload session.
Assembly: Aurigma.ImageUploader (in Aurigma.ImageUploader.dll)
When the upload session is separated into several packages (FilesPerPackage is greater than 0), each package has the same GUID. So you can use it to determine whether files are uploaded in the same session.