NB! This project is outdated and unmaintained, please refer to the OpenSC WindowsInstaller instead!
CSP#11 is an open source project offering a CSP (Windows CryptoAPI) for PKCS#11 modules.
In the Certificate Installer for CSP#11:
Windows XP, Smart card bundle 0.3rc2, CSP11 0.4.1 signed for WinXP, eGate token adapter with cryptoflex 32k: works fine, didn't test the web page so far.