Slitherine

I recently re-installed windows xp and after that panzer corps, afrika korps and allied corps. Now when I launch game I only hear music of the opening trailer but it doesn't show the video. When I click mouse it opens main menu and after that game runs normally. Is there any easy fix for this available? Thanks in advance.

The easiest way, is just to open the folder where you have installed the game, locate a folder named "Video" and rename it to "_Video".
This will disable the video intro.

If you want to hear the video intro than probably the best solution will be to install a codec pack, but you run the risk of breaking other video codecs.