I would like to know what is wrong with my steps towards a qwt integration into qtdesginer.

I copied the compiled qwt.* (lib, exp, dll) to C:\Programme\Qt4\lib and the qwt_designer_plugin.* files to C:\Programme\Qt4\plugins\designer.

The Qt Version is compiled with msvc. Qt is 4.3.4, Qwt 5.02 was compiled with msvc in release mode.

Matthias