GDIplus error: Win32Error

This error could be caused by outputting to a file on a read-only folder such as "C:\Program Files".

Preventative measures:

1. Avoid writing to a read-only directory (this might even be the directory in which you are running your application)
2. Specify a full path name
3. Make sure the target folder itself exists

For further information please see Microsoft's list of Windows error codes