1. RasterEdge Document Imaging SDK provides two version of SDK, one is built based on .NET Framework 2.0 
and the other is based on .NET Framework 4.0.

2. When adding dll to your testing project or solution, if your project is using .NET 4.0 or higher version, 
please use the dlls under directory /Bin/DotNet Framework4.0/. Otherwise please use dlls under directory
/Bin/DotNet Framework2.0/

3. If your project platform target is x86, please use the dll under folder "x86", if target platform is x64, please use 
the dll under folder "x64". Please keep in mind that our dlls do not support AnyCPU platform.