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  4. Can a 1.0 .NET App run on a 1.1 Framework?

Can a 1.0 .NET App run on a 1.1 Framework?

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  • C Offline
    C Offline
    CyberKewl
    wrote on last edited by
    #1

    I'm wondering whether a 1.0 .NET App (C#) can work / run on a machine that has the 1.1 .NET Framework Runtime installed?

    S A 2 Replies Last reply
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    • C CyberKewl

      I'm wondering whether a 1.0 .NET App (C#) can work / run on a machine that has the 1.1 .NET Framework Runtime installed?

      S Offline
      S Offline
      Stephane Rodriguez
      wrote on last edited by
      #2

      Unless an inappropriate .config file tells otherwise, the answer is yes. The application will start, and is very likely to run fine. Note there is a difference between a machine with only the 1.1 CLR installed, and a machine with both CLRs installed.

      C 1 Reply Last reply
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      • S Stephane Rodriguez

        Unless an inappropriate .config file tells otherwise, the answer is yes. The application will start, and is very likely to run fine. Note there is a difference between a machine with only the 1.1 CLR installed, and a machine with both CLRs installed.

        C Offline
        C Offline
        CyberKewl
        wrote on last edited by
        #3

        What kind of differences exactly?

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        • C CyberKewl

          What kind of differences exactly?

          S Offline
          S Offline
          Stephane Rodriguez
          wrote on last edited by
          #4

          If both CLRs are installed, then the application will start using CLR 1.0, unless a .config file tells otherwise. If only CLR 1.1 is installed, then the application will start using CLR 1.1.

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          • S Stephane Rodriguez

            If both CLRs are installed, then the application will start using CLR 1.0, unless a .config file tells otherwise. If only CLR 1.1 is installed, then the application will start using CLR 1.1.

            C Offline
            C Offline
            CyberKewl
            wrote on last edited by
            #5

            Ok. Thanks for the info.

            A 1 Reply Last reply
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            • C CyberKewl

              I'm wondering whether a 1.0 .NET App (C#) can work / run on a machine that has the 1.1 .NET Framework Runtime installed?

              A Offline
              A Offline
              Anonymous
              wrote on last edited by
              #6

              There are some 7-8 issues where applications written in 1.1 break down when run on 1.0.

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              • C CyberKewl

                Ok. Thanks for the info.

                A Offline
                A Offline
                Albert Ho msft
                wrote on last edited by
                #7

                We should make links like this more visible both in the documentation as well as public newsgroups. Please check: http://www.gotdotnet.com/team/changeinfo/default.aspx There is a wealth of information that talkes about the various .config file changes that have to be done to modify your application to run under various Fx version scenarios. There's also a link that talks about various API breaking changes. aL Albert Ho .NET Developer Evangelist Microsoft - Norcal

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