"Out of date" service, etc. in Mini Routes

I decided today to have a drive on one of my favourite routes, namely the Woodhead route uploaded in 2003. This is a Mini Route located on a HD sat within the computer along with numerous other Mini Routes, and I use Mini Loader to access it.
Having selected an activity and clicked on Run Route it opens the MS Screen and I click on Dive Train. It starts and then reports a service being out of date and requests the activity is resaved in Activity Editor.
The question is how does one activate the Activity Editor for a Mini Route? Presumably one solution would be to copy the route as one's main MSTS and then open Activity Editor, although this seems a somewhat long winded solution!

Hi Alec,
To create access to AE for a mini-route :
1. In the mini-route's MSTS root folder, right-click train.exe, select 'Send to', then 'Desktop (create shortcut)'
2. Locate the shortcut on your Desktop and right-click it - rename as appropriate, eg MEP Editors
3. Right-click the shortcut again and select Properties.
4. On the Target line, after train.exe" add one space followed by -toolset -mem:2048  Note the space between toolset and -mem.
5. Left-click the Apply button.
6. Left-click the Compatibility tab and ensure that there is a tick in the "Run as an administrator" box.
7. Left-click the OK button and you should be done - double-clicking the new shortcut should start the editors.

Cheers,
Ged

Once again Ged you have pointed me in the right direction. Thak you.