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Comport communication using System.IO.Ports

Posted By:      Posted Date: August 28, 2010    Points: 0   Category :.NET Framework
I am using System.IO.Ports to communicate the with the printer(Com RS 232). What i want to know is how can i determine weather the Printer is Power on or not.. (i mean Printer is power cable is plugged in and Power on) and also When to use HandShake.XON/XOFF 

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Description: The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

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Source Error:

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Problem upgrading to MVC3 - System.Web.Routing



I'm trying to upgrade to .NET 4 and MVC 3.

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Error 1 The type or namespace name 'Routing' does not exist in the namespace 'System.Web' (are you missing an assembly reference?) C:\Users\spencer\Desktop\weblauncher\Common\MVCConfig.cs 4 18 Common

The type or namespace name 'Routing' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)

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This is frustrating, and I don't know how to solve it.

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On web.config I already have this:
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