i can't run my exe file on another computer
I read that I need to copy some dll files
I copy and nothing
"this application has requested the runtime to terminate it in an unusual way"
You have not copied all the required dlls to new system. Is it Qt or QML application ? Which are are the modules you are using. Hope dlls you copied are same version as dlls you used for compile.
i use Qt
i use core gui sql
Have a look at this find wiki entry to get more information on how to deploy an application on Windows. There's also the Windows deployment guide in Qt's documentation.