Problem to open quicktime files

[Sebastian B=?UTF-8?Q?=C3=B6ckmann?=]

Hello,

I've installed the Quicktime plugin in ImageJ and everything works fine if I start the program using the ImageJ.exe. If I double click on ij.jar to start the program, I'll get the following error message:

Plugin or class not found: "QT_Movie_Player" (java.lang.CoClassFoundError: quicktime/io/QTFile

I haven't got a clue why the error message appears.

Best regards
Sebastian