cryrpt.Load("D:\new\CDP\CrystalReport1.rpt");
insted of this try this..
cryrpt.Load(@"D:\new\CDP\CrystalReport1.rpt");
OR
cryrpt.Load("D:\\new\\CDP\\CrystalReport1.rpt");
you got error becuse of \
for more detail on escap sequence please see this..
http://msdn.microsoft.com/en-us/library/h21280bw.aspx[
^]