how to find out that SSIS Installed in SQLServer Using C#?

i'm writing a windows form application using C# . i use 

  ssisServer = new IntegrationServices(ssisConnection); 

To run and working with SSIS Packages But Before running the Package i wanted To Make sure the user run the application in the correct system and sql server has the SSIS on It's Sql Server.so how can i find whether ssis is installed on the server or not in C#?