I need to read the registry on a remote machine from a .js file. I have found many examples using StdRegProv in .vbs files but can't get it working in a .js file.

I know that there are problems passing arguments by reference to some COM objects in jscript.

If you haven't solved this yet, you might want to take a look

over here Windows Script Host 5.6 reference

and over here StdRegProv jscript and vb example

The last link contains all the examples for executing and retreiving out values from methods.