Minimal System Instruments offers PC users the free Filter Bank multimode filter VST plug-in.
Filter Banks is based on filter modeling and provides five high-pass, band-pass, low-pass, notch and peaking filter types, for which you can control the cutoff and resonance. Input and output level controls are also available, as well as two LFOs and an Analogue! knob.
Filter Bank is a 32-bit VST plug-in for Windows and can be downloaded for free from minimalsystem.com (add it to your cart, then click on "Free Checkout" in the order page, you must register to the website).