MIQP.m file is required

I am using grTravSale() form grTheory toolbox, for computing shortest path sequence of nodes in 2-D grid, but I am facing the following error

??? Undefined function or method 'MIQP' for input arguments of type 'double'.

Error in ==> grTravSale at 77 [xmin,fmin]=MIQP(H,c,A,b,Aeq,beq,[1:m],vlb,vub);

Error in ==> temp at 38 ou(a,b) =grTravSale(distances);

I presume that miqp.m is required for this function but the said file is not available in grTheory toolbox. I had also searched it over fileexchange and google too, but unable to find. Please guide me where miqp.m will be found. Thank you

[Abhishek Bera]

Same here man. I am stuck with this. Any luck for you?

[Walter Roberson]

http://cse.lab.imtlucca.it/~bemporad/hybrid/toolbox/ appears to have MIQP.m

However, the license terms do not permit me to download it to verify that it is an MIQP.m that would be useful for this task. (I am not considered Academic)