I'm in the process of building a web application in ASP.NET MVC C# (including ajax/jquery) and have to save a file locally to the client's hard drive.
I have another application that polls a directory for new files, so it's essential the files from the website ends up at that location so therefore showing a "save as.." won't work.
What alternatives do I have? (Sadly I can't rewrite that external application to work in any other way.) Should I write the web application in silverlight instead? Should I use an ActiveX object? ActiveX feels so 1995 though.. Are there any other variants nowadays?