3.5.21009.0 True Microsoft.Build.Engine.dll Microsoft.Build.Engine.dll Microsoft.Build.Engine.dll Microsoft Corporation Microsoft® .NET Framework © Microsoft Corporation. All rights reserved. False 3.5.21009.0 3.5.0.0 en-US True f:\dd\tools\devdiv\FinalPublicKey.snk 1 0 If you were simply passing in the .NET Framework location as the BinPath, just change to the parameterless Engine() constructor. Otherwise, you can define custom toolsets in the registry or config file, or by adding elements to the Engine's ToolsetCollection. Then use either the Engine() or Engine(ToolsetLocations) constructor instead. Avoid setting BinPath. If you were simply passing in the .NET Framework location as the BinPath, no other action is necessary. Otherwise, define Toolsets instead in the registry or config file, or by adding elements to the Engine's ToolsetCollection, in order to use a custom BinPath. True True True 1 0 1 0 True 1 0 2