Доступ к custom сущностям

[AndreyS]

Использовать токен:
CrmAuthenticationToken token = new ...;
token.AuthenticationType = 0; //AD
token.OrganizationName = "";

CrmService service = new ...;
service.CrmAuthenticationTokenValue = token;
service.Url = http://server/mscrmservices/2007/crmservice.asmx;