The About Window for all WilloWare products is identical. Open the About Window by going to Help >> About Microsoft Dynamics GP. From that window select Additional >> About {WilloWare Product/Customization}.
{WilloWare Product/Customization} = the installed product, such as GP PowerPack or LabelLink.
Please refer to the general About Window guide here: www.willoware.com/online/about-window