It is a bitmap File. The file is extracted by locating the c:\windows\system\bootres.dll file and opening it an application capable of opening executables as recourses. Once it is open, you must export the Data type resource with the ID of 1. The data contained in this will be binary and data starts with MSWIM. Export it to bootres_0001.wim I saved my on e:\. It will be 2,208,148 bytes in size. This is an Windows Imaging Format file you need ImageX to open the archive. http://technet.microsoft.com/en-us/li...
for more info, Google It.
When you get ImageX right click on the .inf folder, left click install. Next you must create a directory to places mounted images. I chose c:\mount below is the command line you need to mount the image. imagex /MOUNT e:\bootres_0001.wim 1 c:\mount\
After that you can change the directory to c:\mount\ and copy out the file activity.bmp it will be 12,600,054 bytes in size and have a resolution of 200x21000.
This is your logo, a 24 bit BITMAP, uncompressed. So to answer you question no its not an AVI, I created the image by writing a program to cycle through the image displaying one Frame at a time. Basically I just copied from the source image and incremented the Y value every time.