Why the extension for ASP.NET is .aspx

Many of us wonder why the extension for ASP.NET is .aspx. Well, long time ago, when ASP.NET was being developed at Microsoft it was referred to as ASP+ (ASP Plus). You can’t use a "+" symbol in a filename but if you turn the + symbol about 45 degrees, it looks like a x. Microsoft chose .aspx as the extension of ASP+. After the name was changed to ASP.NET, Microsoft didn’t change the extension and left it as aspx.


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