Why Classic ASP?
You can try out several other ways, ASP.NET Core, ASP.NET Core Razor Pages, and much more. They are really lightweight and run anywhere you want. You can get started for ASP.NET Core from here,
Introduction to ASP.NET Core | Microsoft Docs[
^]. Then build on top of what is given.
Then finally, just build a sample. There is a good article on CodeProject as well for photo library, you can get started from there. Search on the top-right corner, for "image library asp.net". Chances are there will be detailed explanation of uploading, searching, filtering and other common stuff.
Remember, Classic ASP is dead, avoid it. It is better if you upgrade yourself, or start right from the ASP.NET Core (or the ASP.NET) stuff.
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