Microsoft Streets and Trips: An unnamed file has a bad format

I have been using Microsoft Streets and Trips 2004 for a long time. I uninstalled it, and then later reinstalled it. Now, I get "an unnamed file has a bad format" when I try to open an existing map. However, anything made since the reinstall will open. What is going on?

Hi chefron,

Welcome to Laptop GPS World.

I think this 'An unnamed file has a bad format' may be an error a user gets when s/he attempts to open in an older version of the program a Streets & Trips file saved in a newer S&T version. Is this what you are trying to do?

Actually, it is the same version of Streets and Trips that created the map originally. I just re-installed the same program I had been using. S&T just does not work on the previously made maps. Odd.

Have you changed the operating system in the mean time? Say, from XP to Vista?

...ken...

i have not. still using the same xp home version that has been there for 2 years.

If you want to attach an est file, I have 2004 on another computer and can try it. I'll probably get the same result as you if the file is damaged but who knows.

Terry