Changing user defined variable types

Hi,

Is it possible to change the type of a user define object within a code? (User defined is not one defined by me but of one obtained from an add in). I know VBA has Variant for instances of a predefined type being used if, for example, the user wants to use the variable as integer and string within a program.

In Java there is such a thing as "casting" which can be used to change a type but I'm not sure of VBA.

Any ideas?

Mbrolass