In Excel 2002, under XP professional, I have an application that uses custom chart types (User-defined) stored in the xlusrgal.xls file. I would like the application to use this file, but I do not want to overwrite any existing custom chart types. I want the application to use my xlusrgal only when the application needs it and leave any other xlusrgal file alone. In prior versions of Excel, I was able to accomplish by setting/resetting the alt startup path after program initiation and storing the xlusrgal file there. This does not seem to work anymore. Any workarounds? (Thanks in advance.)