I  met a big problem, i used the login control to validate the user and transfer another aspx file. it worked very well at VWD 2005 express,but the error occour: "http 500 inside server error", my web.config as following:

<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
 <connectionStrings>
  <add name="AccessFileName" connectionString="~/App_Data/ASPNetDB.mdb"
   providerName="System.Data.OleDb" />
  <add name="myDealerConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\myDealer.mdb;Persist Security Info=True;Jet OLEDB:Database Password=pa$$405247"
   providerName="System.Data.OleDb" />
 </connectionStrings>
 <system.web>
  <authentication mode="Forms">
      <forms loginUrl="mylogin.aspx" defaultUrl="mylogin.aspx"/>
  </authentication>
  <membership defaultProvider="AccessMembershipProvider">
   <providers>
    <clear/>
    <add name="AccessMembershipProvider"
     type="Samples.AccessProviders.AccessMembershipProvider"
     connectionStringName="AccessFileName"
     enablePasswordRetrieval="false"
     enablePasswordReset="false"
     requiresUniqueEmail="true"
     requiresQuestionAndAnswer="false"
     minRequiredPasswordLength="1"
     minRequiredNonalphanumericCharacters="0"
     applicationName="Dealer"
     hashAlgorithmType="SHA1"
     passwordFormat="Hashed"/>
   </providers>
  </membership>
  <roleManager enabled="true" defaultProvider="AccessRoleProvider" cacheRolesInCookie="true" cookieName=".ASPXROLES" cookieTimeout="30" cookiePath="/" cookieRequireSSL="false" cookieSlidingExpiration="true" cookieProtection="All">
   <providers>
    <add name="AccessRoleProvider"
     type="Samples.AccessProviders.AccessRoleProvider"
     connectionStringName="AccessFileName"
     applicationName="Dealer"/>
   </providers>
  </roleManager>
  <profile enabled="true" defaultProvider="AccessProfileProvider">
   <providers>
    <add name="AccessProfileProvider"
     type="Samples.AccessProviders.AccessProfileProvider"
     connectionStringName="AccessFileName"
     applicationName="Dealer"
     description="Stores and retrieves profile data from an $safeprojectname$ database."/>
   </providers>
   <properties>
    <add name="FriendlyName" type="string" allowAnonymous="true" serializeAs="String"/>
    <add name="Height" type="int" allowAnonymous="true" serializeAs="String"/>
    <add name="Weight" type="int" allowAnonymous="true" serializeAs="Xml"/>
   </properties>
  </profile>
  <anonymousIdentification enabled="true" cookieName=".ASPXANONYMOUS" cookieTimeout="100000" cookiePath="/" cookieRequireSSL="false" cookieSlidingExpiration="true" cookieProtection="None" domain=""/>
  <webParts>
   <personalization defaultProvider="AccessPersonalizationProvider">
    <providers>
     <add name="AccessPersonalizationProvider"
      type="Samples.AccessProviders.AccessPersonalizationProvider"
      connectionStringName="AccessFileName"
      applicationName="Dealer"/>
    </providers>
   </personalization>
  </webParts>
  
        <!--
  <trust level="Medium"/>
        -->
  
  <compilation debug="true"/>
    <customErrors mode="Off" />
    <sessionState timeout="60"  />

  </system.web>
</configuration>