invoke an ifs package in csharp

To invoke an IFS (Intelligent Financial Systems) package in C#, you can use COM interop to access the package's objects and methods. Here's an example of how to import the package's type library and use a method from the package:

main.cs
using IFS.Archive;
// import the package's type library

class Program {
    static void Main(string[] args) {
        Archive archive = new Archive();
        // create an instance of the Archive class

        archive.Login("username", "password");
        // call the Login method from the package
    }
}
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This code imports the IFS.Archive namespace, which contains the Archive class from the package. Then it creates an instance of the Archive class and calls the Login method, passing in a username and password.

Note that you may need to register the package first using the regsvr32 command in the command prompt. Additionally, you'll need to add a reference to the package's DLL file in your project in order to import the type library.