System requirement
  

PhotoWatermark Professional is compatible with Windows 2000, Windows XP and Windows Vista or above system which has internal unicode support.

For Windows 2000, Microsoft GDI+ library (free at Microsoft or www.dll- files.com) is required.

The file you need is gdlplus.dll contained either in a zip file or self extractable .exe file. You can place gdiplus.dll into either Windows\System32 folder or PhotoWatermark Professional's program folder.

You can also download this file from here. Please save it to your Window\System32 folder.