mono myfile.exe
System.DllNotFoundException: wininet.dll
  at (wrapper managed-to-native) Multiple_Website_Viewer.Form1:InternetSetOption (intptr,int,intptr,int)
  at Multiple_Website_Viewer.Form1.UseProxy (System.String strProxy) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) Multiple_Website_Viewer.Form1:UseProxy (string)
  at Multiple_Website_Viewer.Form1.Button2_Click (System.Object sender, System.EventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.OnClick (System.EventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Button.OnClick (System.EventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ButtonBase.OnMouseUp (System.Windows.Forms.MouseEventArgs mevent) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Button.OnMouseUp (System.Windows.Forms.MouseEventArgs mevent) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.WmLButtonUp (System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.WndProc (System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ButtonBase.WndProc (System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Button.WndProc (System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control+ControlWindowTarget.OnMessage (System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control+ControlNativeWindow.WndProc (System.Windows.Forms.Message& m) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.NativeWindow.WndProc (IntPtr hWnd, Msg msg, IntPtr wParam, IntPtr lParam) [0x00000] in <filename unknown>:0 

What have I to do? Thanks.

  • Which version of Wine and Ubuntu are you on? – Thomas Ward Jun 15 '15 at 12:04
  • Basically you need to add the missing dll to the wine config. – mondjunge Jun 15 '15 at 12:43

The error itself is quite self-explanatory: System.DllNotFoundException: wininet.dll - you are missing wininet.dll, a Windows proprietary item. So we have to install it.

You could try to do this: winetricks wininet - it'll try and install the DLL. However, this is reported to both work and not work depending on your Wine version.

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