string HttpPost( 
   string url,
   string content,
   string contentPostingType,
   string proxy,
   string encoding,
   ResponceType respType,
   int timeout,
   string cookies,
   string userAgent,
   bool useRedirect,
   int maxRedirectCount,
   string[] additionalHeaders
)

Parameters

url

content

contentPostingType

proxy

encoding

respType

timeout

cookies

userAgent

useRedirect

maxRedirectCount

additionalHeaders

Return Value

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

IInstanceManagerService Interface
IInstanceManagerService Members