If you use Win98 or Win2000 you might need GDIPlus package (gdiplus.dll) if it is not already installed on your computer(probably it is) in order to use Zortam Mp3 Media Studio properly.
You need to put only this file in Zortam installation folder or system32 or windows folder.
Link to download that gdiplus.dll from external site
or from zortam web site
Also you need DirectX 9 to run Zortam properly.
But the last DLL (kernel32.dll) is available on all Windows versions so it can not be missing.