Behind the scenes, VB still makes extensive use of pointers. This little piece of software tries to determine whether or not an object should be destroyed.
There are many ways to implement a garbage collector, but Visual Basic uses what is called the reference count method.
Calculation = xl Calculation Manual Stop Events: Use Application.
You may turn off the automatic calculation using Application.
For example: Instead of str Variable = "", use str Variable = vb Null String.