Two roles provider in one ASP.net application

Hi,
is it possible to have more than one role provider within an asp.net application.
my application could be accessed by two types of users.  type one users belongs to windows active directory. type two users belongs to an asp.net membership database. here is my web.config:


<authentication mode="Forms">
<forms loginUrl="~/Web Pages/First Level/User Management/Login.aspx"></forms>
</authentication>
<membership defaultProvider="AspNetMembershipProvider">
<providers>
<add connectionStringName="ASPNetSecurityCon" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" applicationName="/" requiresUniqueEmail="false" passwordFormat="Hashed" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequ ...