multi targeting in command line compiler (csc.exe)

Question

My question is simple: How can I do multi-targeting in command line compiler (csc.exe), especially to .Net 4 Client Profile?

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edit: Ok, Is my que

Answer 1

TargetFramework can be configured in the Project file only and can't be passed as a switch to CSC.exe, see settings for TargetFrameworkVersion and TargetFrameworkProfile in below example

So the only way to dynamically set is to modify the project file with below setting and compile with csc.exe if you want to set Client Profile

Targetting .NET Framework 4.0 Client Profile

    Debug
    AnyCPU
    {A5F58561-47CA-482A-83E0-1D43C312B0A7}
    Exe
    Properties
    ConsoleApplication1
    ConsoleApplication1
    v4.0
    512
    Client
  

Targetting .NET Framework 4.0

    Debug
    AnyCPU
    {A5F58561-47CA-482A-83E0-1D43C312B0A7}
    Exe
    Properties
    ConsoleApplication1
    ConsoleApplication1
    v4.0
    512