Bernhart,
First, I didn't see any significant slowdown in Tasklist in your AVI. Second, the source code for Tasklist is shipped with VFP in the xsource.zip file in the Tools\xsource subdirectory so you can dig into it, if necessary.
>
>I work much with this tool.
>It is however very slow.
>
>Cleanup is done but it is always slow.
>
>how to accelerate?
>
>
http://www.amline.be/Ng/task.avi>
>
--sb--