Why doesn't System.Uri recognize query parameter for local file path?

Question

I need to add some additional query information to file path as query parameter to parse path later during files processing. I though that System.Uri class can hel

Answer 1

Query string parameters are not valid when requesting a local file.

When you requests a file using http the file is executed and is therefore able to read and process the querystring. When you request a local file it is not executed and so is unable to make use of the querystring.

What is the reason you are adding querystring params to a file request? Is there another way of doing it?