I don't think the framework would allow you to do that. You could mess up all the class info stuff including vtable. Plus you would have to know internal layout of the class data structure, and that might be system dependend (might work differently on mono or .netgnu) You can download rotor and see how they lay it out. If you try to get address of any managed type, you'll get error: Cannot take the address or size of a variable of a managed type.

If you are trying to read the contents of a specific address without knowing what type of data is held there, then one way of doing it is to call: Marshal.PtrToStringAnsi(ptr, length) where 'ptr' represents the address of the first byte and 'length' the number of bytes to be read. This returns the data in the form of a managed string (with each byte expanded to a 2-byte unicode character), which you can then examine Naveen