Well, like you can gues this is realy coresponding to version 4.90 in the original sf.net project.
For some time I use latest version of Ubuntu (Linux) for bugtraking and optimizing "my" projects and I made a lot of logical changes after at first release this was compiled only for Windows Vista and Server 2008 with partial compatibility with XP.
After I made a advanced research on how Microsoft programs are optimized for diffrent Windows Versions specily 98, and not just for Windows, I decided to optimize this version of notepad++ so that will run on all Windows Versions starting with Windows 95 wich has Internet Explorer 5.5 installed and to work with latest version of Wine under Linux wich may allso be supported by the generic version.
This was posible couse notepad++ is only including GNU features and not features build in Windows wich could make the code and binany be very compact like the Windows Notepad. But I commed to the conclusion that is nonsens to build a program wich do not use any Windows build code to run only with the last version of Windows, specialy a GNU program. Plus this was very easy only requiring some elegant optimizations based on public
domain informations. For this reason and other resons the source code was released in same package.
I didn't included a installer in this release couse in Windows it's very easy to create a desktop shortcut, but someone can request this. Of course this will add a nice desktop icon to the GNOME Desktop too.