SSIS - nshanb/DotNetPlayGround GitHub Wiki
using Microsoft.SqlServer.Dts.Runtime; from Microsoft.SqlServer.ManagedDTS.dll
Application.( CreateFolderOnSqlServer, GetPackageInfos, ... ) work with [msdb].[dbo].sysssispackagefolders,[msdb].[dbo].sysssispackages! This is old stuff.
[SSISDB] is the newer version: Microsoft.SqlServer.Management.IntegrationServices