not perl, but then neither is lsof -

not as instructive as BrowserUKs answer -

but for raw functionality, ie process, time, file, request &c &c you can not do much better than filemon, from sysinternals sysinternals. on win32. other useful tools abound at the site. it is free.

regards, best wishes,

wufnik

-- in the world of the mules there are no rules --