https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77796#M29914 To close this off, Version 5 supports .NET 4. Built on .NET 4 Provided as a native .NET Framework 4 application, support is now provided for advanced users wishing to reference the latest .NET dlls whilst maintaining the compatibility for installing the application on a wide range of modern and historical operating systems including Windows Server 2003 and Windows XP through to Windows Server 2012 and Windows 8.1. Cheers, Nitin Thu, 02 Mar 2017 02:20:00 GMT NitinChandhok 2017-03-02T02:20:00Z https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77794#M29912 Hi there, Using BP 4.2.55 and having trouble compiling my code from within BP. The compiler it's using is the .NET 2.0 framework, which contains an outdated version of mscorlib.dll. Is it possible to change the .NET framework being used? Does version 5 use.NET 4.0? Cheers, Nitin Sat, 25 Feb 2017 05:04:00 GMT https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77794#M29912 NitinChandhok 2017-02-25T05:04:00Z https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77795#M29913 Didn't have much luck as I encountered other compilation issues.. Adding to this, the change noted above broke my application spying, and I could no longer ""Control+Click"" to exit spying mode. I will continue playing around to see if I can get my code working. Tue, 28 Feb 2017 12:24:00 GMT https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77795#M29913 NitinChandhok 2017-02-28T12:24:00Z https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77796#M29914 To close this off, Version 5 supports .NET 4. Built on .NET 4 Provided as a native .NET Framework 4 application, support is now provided for advanced users wishing to reference the latest .NET dlls whilst maintaining the compatibility for installing the application on a wide range of modern and historical operating systems including Windows Server 2003 and Windows XP through to Windows Server 2012 and Windows 8.1. Cheers, Nitin Thu, 02 Mar 2017 02:20:00 GMT https://community.blueprism.com/t5/Product-Forum/Possible-to-choose-the-NET-version-for-code/m-p/77796#M29914 NitinChandhok 2017-03-02T02:20:00Z