print preview_img 'doc/arch-captive','Captive Subsystems Architecture';
print preview_img 'doc/arch-W32','Original Microsoft Windows Subsystems Architecture';
print preview_img 'doc/ratio','Functions Reusal Ratio';
print preview_img 'doc/arch-captive','Captive Subsystems Architecture';
print preview_img 'doc/arch-W32','Original Microsoft Windows Subsystems Architecture';
print preview_img 'doc/ratio','Functions Reusal Ratio';