Just wanted to let you know that I've added a -t switch both to whosthere and whosthere-alt
the -t switch sets the time interval used by the -i option (the option that waits indefinitely trying to capture new hashes)
before, the time interval was 2 seconds, now this can be set at will using the new -t switch
whosthere.exe -i -t 20
will attempt to gather new hashes every 20 seconds
whosthere-alt.exe -i -t 0.5
will attempt to gather new hashes every 0.5 seconds
This feature will be available on the next release, but if you really need it, just send me an email and I'll send you the new version with this feature included.