Using the Join Command

In trying to use the "Join" command in 2010 and following the same proceedure as as used

before (which worked) in the new version the command is greyed out.

I even went into the help file to see if I was missing something and I did it verbadome

to what they instructed and it is still greyed out.

Why?

Did they change the way it is used different from the help file?

SolidworksApi macros