Your fix works, it removed VS2015 compilation errors. But I now get "ScintillaEditView::init : SCINTILLA ERROR - Can not load the dynamic library" exception. Do you know how I can fix this? Thank you!

I think you may be mixing 32-bit and 64-bit compilers. You compile the Scintilla DLL on 32-bit and then you load it into a 64-bit process. Could you try selecting the x86 item from the Solution Platforms combo-box in the Standard toolbar from VS2015?

You can read about how to enable the 64-bit toolchain here: [https://msdn.microsoft.com/en-us/library/x4d2c09s.aspx?f=255&MSPPError=-2147217396]

You can use dumpbin /headers <dll> to find out if the dll is built for 32/64 bit.

Edited: wrong default info

I still get the same error... I realised I did not even compile Scintilla. I followed the Readme and compiled it without BOOST. I then tried to compile the VS2015 project in PowerEditor, but I still get the same error, x64 or x86.

Did you copy SciLexer.dll to the correct location after building N++ with VS?

I most certainly did.... not! That fixed it.

Thank you very much! 👍 :)

You're welcome! Thanks for testing my patch.

Merging #1525 would be even better since it makes separate updates unnecessary in future.