[Limdep Nlogit List] System of regression equations

[Andreas Drichoutis]

This may be a naive question. What is the appropriate way to estimate a
system of equations of the below form in Limdep, if Y1 and Y2 are both
continuous? 
 
Y1= a0 + a1*X1
Y2= b0 + b1*X1 + b2*X2 + b3*Y1
 
 
Thanks,
Andreas Drichoutis