To run jDoc library in windows you should copy these
esteid-pkcs11.dll and PKCS11Wrapper.dll into %WINDIR%\System32

also pay attencion that config file these values do match!!!
DIGIDOC_SIGN_PKCS11_DRIVER=esteid-pkcs11 
DIGIDOC_SIGN_PKCS11_WRAPPER=PKCS11Wrapper