The KEA wrapper can be run using the following command:

F:\KEAWrapper>java -jar KEATEWrapper.jar fileList

fileList: a tab separated list of files. On each line the file contains 
the file name (with the full path) to be annotated by the wrapper, a tab 
for separation and the file name (with the full path) where the results of 
the annotation should be saved. The output file will be automatically generated by the wrapper.