Opening Older File Iterations - Using FILE>OPEN dialog box

Hi all,

I'm stuck.  I want to be able to open older CAD iterations by inputting the the information in the File>Open dialog box directly.  I can't recall the correct syntax to get this to work.  What I can remember, is it was formatted similar to this:

proe_file_name.prt|level=XX

Or something like that.  If memory serves me, I think you can manually call up the itereation and version number.  I can't recall the correct way to do this.  I am working in a Windchill environment, so using "Show Instances" within the OPEN dialog box is not the solution I am looking for.  Any help is appreciated.

-Adam