Windows 7 has Aero Snap, but Sensiva can do custom snapping.
Since Sensiva is no longer supported, users looking for similar mouse gesture functionality on Windows 7 or later often use these active alternatives: StrokesPlus.net Sensiva Mouse Software For Windows 7 Free 31
: Once you release the button, Sensiva recognizes the pattern and executes the assigned command. Coding Horror 3. Customizing Your Symbols Open Symbol Commander Windows 7 has Aero Snap, but Sensiva can do custom snapping