Date wise Bulk File Copying Application Using C#

Question

Hello Friends I am new to this programing world so please help me
I want to creat an application that CAN COPY FILES OF PARTICULAR MONTH
AS PER ITS LAST WRITEN DATE (LAST MODIFIYED DATE) FOR EXAMPLE
IF THERE IS A FOLDER IT CONTAIN LOTS OF FILES OF DIFRENNT MONTH
FORM THAT I WANT TO COPY ONLY 01/04/09 TO 30/04/09  FILES TO RESPECTED FOLDER . IN SHORT I WANT TO CREAT APPLICATION THAT CAN COPY DATE WISE BULK FILE TO OTHER FOLDERS.