im running asp.net page using mod_mono on johnny server. httpCompression in web.config does not seems to work and also gzip or deflate in code behind return a failure: for this line : response.Filter = new GZipStream(context.Response.Filter, CompressionMode.Compress); libMonoPosixHelper.so Description: HTTP 500. Error processing request. Stack Trace: System.DllNotFoundException: libMonoPosixHelper.so at (wrapper managed-to-native) System.IO.Compression.DeflateStream:CreateZStream (System.IO.Compression.CompressionMode,bool,System.IO.Compression.DeflateStream/UnmanagedReadOrWrite,intptr) at System.IO.Compression.DeflateStream..ctor (System.IO.Stream compressedStream, CompressionMode mode, Boolean leaveOpen, Boolean gzip) [0x00000] in <filename unknown>:0 at (wrapper remoting-invoke-with-check) System.IO.Compression.DeflateStream:.ctor (System.IO.Stream,System.IO.Compression.CompressionMode,bool,bool) at System.IO.Compression.GZipStream..ctor (System.IO.Stream compressedStream, CompressionMode mode, Boolean leaveOpen) [0x00000] in <filename unknown>:0 at System.IO.Compression.GZipStream..ctor (System.IO.Stream compressedStream, CompressionMode mode) [0x00000] in <filename unknown>:0 at (wrapper remoting-invoke-with-check) System.IO.Compression.GZipStream:.ctor (System.IO.Stream,System.IO.Compression.CompressionMode) at ASP_bongi._Default.doCompression () [0x00000] in <filename unknown>:0 at ASP_bongi._Default.Render (System.Web.UI.HtmlTextWriter writer) [0x00000] in <filename unknown>:0 at System.Web.UI.Control.RenderControl (System.Web.UI.HtmlTextWriter writer) [0x00000] in <filename unknown>:0 at System.Web.UI.Page.RenderPage () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.InternalProcessRequest () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 does somebody have any idea if this can be fixed or there is another wayy for using gzip in this configuration.? thanks, bongi