how to run my application made through qt creator(windows7) into raspberry pi b plus?
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See here: https://wiki.qt.io/RaspberryPi_Beginners_Guide
If you want to build your application on your Windows PC then you need to cross compile Qt (even if you run Windows 10 on Raspberry Pi because it has an ARM CPU not x86).
Alternative is to build directly on Raspberry Pi (it takes longer then).