Track DLL and file handle problems with Process Explorer
Process Explorer shows you information about which handles and DLLs processes are open or loaded.
It consists of two sub-windows. The top window shows a list of the currently active processes, including the names of their owning accounts, whereas the information displayed in the bottom window depends on the mode that Process Explorer is in: if it is in handle mode you’ll see the handles that the process selected in the top window opened; if Process Explorer is in DLL mode you’ll see the DLLs and memory-mapped files that the process has loaded.
Process Explorer has a search option that will show you which processes have opened particular handles or loaded particular DLLs. The capabilities of Process Explorer make it useful for tracking down DLL-version problems or handle leaks, and gaining insight into the way Windows and applications work.
Process Explorer does not need installation, just run the executable to use it.