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I'm creating a couple of custom response headers to be returned from ASP.Net web api actions, and I need to know if there's a hard or practical size limit that I should be concerned with?

Joseph Gabriel
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  • Are you going to self-host a web api or are you deploying on IIS? For the latter the IIS will be limiting. See also this previous SO post : http://stackoverflow.com/questions/1097651/is-there-a-practical-http-header-length-limit – AardVark71 Apr 02 '13 at 10:55
  • Seems IIS self-host uses Http.sys internally which means you can look at the MaxFieldLength and MaxRequestBytes in the Http.sys registry settings (http://support.microsoft.com/kb/820129) – AardVark71 Apr 02 '13 at 11:07

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