I want to modify a Contact in Address Book in which i am able to add/delete/modify values of different fields.

for example :

Modify the following in the Contact:

i) Delete the Office Postal Address

ii) Modify the BirthDay

iii) Add IM address

All the three operations for contact. How can i do it?

Can u please give me an example in C#.net for GroupWise SP 7.3