Yesterday Sysinternals released the new version of their famous Tool “Process Explorer”…

New in this version:

• x64 and x86 executables are in a single binary
• x64 kernel and user-mode stack support
• New Verified Company column shows image signer information
• Strings tab in process properties dialog has in-memory image scan option
• Highlighting for images that are packed (have compressed or encrypted code, which is common in malware)
• Window menu on process context menu allows for minmizing, maximizing, and restoring windows

Source: http://www.sysinternals.com/ntw2k/freeware/procexp.shtml