I am developing an Outlook 2010 Add-In, and am loading an image from a serialized XML file. The image loads fine, and am able to assign it to a pictureBox object on a Winfo
I had the same generic exception, but then I gave write permission to the IIS on parallel plesk file manager. if you are on windows server, make sure to give write permission to IIS user which was IIS_IUSR in my server
also make sure that the folder you are trying to save is correct as mentioned in above comments