Batch loop to start excel.exe

Hello,

I am facing problem with one of my applicaiton exe file gets stop anytime and frequently.
was trying to create batch file that will search for applicaiton exe file in process (exe file in tasklist eg. excel.exe), if find it will go in loop to find again & again. if killed or stopped will start the that particular exe file and go in loop to search. I dont want this process to stop at all. (unless manually stopped)

Pls guide

Rgds
NM