Simple Questions

[ravirams]

1 to refresh the menu items at runtime,

2 how to delete the memory, which are dynamically created at runtime

[Siddhartha]

Answering question # 2 -
Memory can by allocated dynamically using malloc, or new.

For the former, use free.
For the latter use delete, or delete [] if you allocated an array.

[gstercken]

1 to refresh the menu items at runtime

If you're using MFC, implement OnUpdate handlers for your menu commands.