I created an app. I have some files which I can open with this app. So I made the association with the commands below:

assoc .bengi=BengiFile

ftype BengiFile="C:\Program Files (x86)\Bengi\CreateAS.exe" "%1" %*

After these, I can see that my file's icon has changed according to my app's icon. But when I double-click on it, the app is not opened. Can you tell what is wrong?

Thanks in advance.

After having created your association and file type modification, what output is displayed if you just run ftype?