VB6 - Yet Another Web Server

[DllHell]

I need some clarification on the use of "RespExtraHeaders". This is one of several variables (RespStatus, RespStatusText, RespMIME, RespExtraHeaders, and RespBody) that can get a return value in the DynamicRequest event because they are declared ByRef. DllHell has already demonstrated to us the use of RespStatus, RespStatusText, RespMIME, & RespBody, but the use of RespExtraHeaders evades me.

you can use it to add cookies. you can also use it to send data that isn't part of the header spec (see the "x-" headers in this list https://developer.mozilla.org/en-US/...esponse_header)

In the SendResponse Subroutine, it appears that if ExtraHeaders contains "Last-Modified:", it would get added twice. How and when are ExtraHeaders utilized?

it would get added twice. you want to use the extraheaders for things that are not already included: things specific to your server impl or your application.

important to note that the extraheaders are only useful if the receiving end knows how to handle them and are typically used for debugging or to provide additional info to developers about the request. For example, you may have a "X-powered-by: yourapp.exe/1.0.2" to know what version of your exe is on the other end.