QtDIR\bin vs QtDIR\qt\bin libraries

[produktdotestow]

Both are from the same Qt version.

I want to use smaller files, because... they are smaller. Installer will be "lighter" -> faster download, better "impression" on the user etc.
Anyway.. it's not important why, important how

Anyone have any idea?

[ChrisW67]

I assume your "QtDIR" is an SDK install location. The files in bin directory are the run-time libraries to support Qt Creator and were built with the compiler used to build Qt Creator (MSVC).

The files in the qt/bin directory are the ones built with whatever compiler was used to build this development version of Qt. If the this is MingW then the files are typically a little larger than the equivalent MSVC versions. These files match your application which is built with the same compiler.

Nothing stops you using the Microsoft compiler if you are that worried about a few hundred KB.

[dbzhang800]

If your Qt SDK installed in D:\Qt2010.5\ ,
Then ,%QTDIR% should be D:\Qt2010.5\qt\ instead of D:\Qt2010.5\

If you just install Qt Framework, then %QTDIR% is the directory where you install it, such as D:\4.7.3