To Get Focus to a Command Button

Hi everybody,

I am working on a vb project to upload data. While uploading data, a progressbar shows the progress. I have placed a command button which will be made visible when the uploading begins. Command button is placed to stop the uploading if the user desires. My problem is, i am not able to get the focus to this button when the uploading begins. When progress bar is running, how to shift the focus to command button. Please help.

thanks in advance