Good Afternoon.

First of all, sorry for my english.

I have a problem with the extensions of Aspen Hysys.
When I try to register the new extension "eq.plot", the programme give me an error like this:

Attempting to register the HYSYS extension: C:\Users\Samanta\Documents\(extension HYSYS) EqPlots\EqPlots.dll
Image Type: COM
The entry point "DllRegisterServer" could not be found.
FATAL ERROR:
Registration of the HYSYS extension EqPlots..dll failed.

What can I do?
I need your help!

thanks