VB 6 string type in VB.Net ?

[ppanke]

I need to create a VB 6 string variable, in a VB.Net app. I then need to send it to an unmanaged API. (If I send a VB.Net string class, the receiving API blows up; it does not recognize the class. It needs a VB 6 string variable.). Does anyone know how to do this?

Thanks

[aniskhan]

string in vb.net is immutable ,can't be modified and is used for constant values, if the string is modified in called function then pass system.text.stringbuilder.