Execute Multiple Request using crm 2011 SOAP endpoint in Silverlight

Hi, 

I am working on Silverlight web resource for dynamics crm 2011 using SOAP endpoint.

I need to do Create, Update and Delete operations in Bulk using SOAP endpoint.

I have read SDK but I can't found any way to do CRUD operations in BULK using SOAP endpoint.

Is there any way to do this? Please guide me I am new in dynamics crm.