I've resolved de problem, the command must be like this:
/exec c:\windows\system32\wscript program.vbs

Now, I've another problem, when I run this script or when I run another program with /exec, LFS window lost focus.

Hi, what type of programs can be executed with de /exec command?
I'm trying to run a VBScript and doesn't run, LFS displays this error "Parameter is not valid".

Quote from Taavi(EST) :

Mode 2: Evolution (STCC Style)

1. Class 1: The stock cars, to start with, XFG, UF1, XRG. Add lower powered RB3, LX3, FXG (low powered FXO)
   
2. Class 2: (TBO) XFI, UF2, XRT, RB4, LX4, FXO
   
3. Class 3: (LRF) XFT, UF3, XRF, RB5, LX6, FXF + RAC, FZ5
   
4. Class 4: (small GTR) XFR, UFR, XRO, RB6, LX7, FXT
   
5. Class 5: (GTR) FXR, XRR, RAR, FZR, LX8
   
6. Class 6: (S-S) FOX, FO8, BF1 (all in different classes, i know.)

Where is the MRT?

when I restart my dedicated host, if I configured a track that has layout, laps parameter does not work and always it remains with 1 lap race