[TYPO3] Imagemagick and black popup window

[Gunnar Jonsson]

I have upgraded my wamp installer on my PC. In that installer was 
Imagemagick 4.2.9 and all seems to work fine, except for one thing. Every 
time Imagemagick has to process some image there pops up a black DOS window 
for some seconds. When running TYPO3 on the older wamp installer I did not 
see any such black popup windows when imagemagick was processing images. I 
suppose it is some setting in Imagemagick.

Is it someone who knows how to get rid of those black popup windows, when 
using Imagemagick in Typo3?

Regards,
Gunnar Jonsson