Error when using JScript

When I run my script, or even ones copied off the site (with directories and such changed accordingly) I get this error.


I'm thinking it has to do with the WinSCPnet.dll not properly installed or registered, I've followed the steps for installation and registration twice now.
Any Advice? Has anyone seen this before?

Did you follow these instructions?
https://winscp.net/eng/docs/library_com_wsh