if i delete a file from my application setup directory my setup runs automatically and create the deleted file when i start my application.
how can i prevent it.

This is the default behavior of MSI-based installs. Shortcuts and some other entry points into apps will trigger a check that files are still there. Why are you installing a file that you remove later?
Search this forum for DISABLEADVTSHORTCUTS for a solution that some have used. Visual Studio setups don't support the official solution described here under the ComponentId description:

http://msdn.microsoft.com/en-us/library/aa368007(VS.85).aspx

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Phil Wilson

DO you Mean:
COndition: setup file of your is deleted
COndition: If you double click Setup.exe Its automaticly Recover your Lost files...
???
Do you mean this...?

its automatically recover my lost files when i double click my application's shortcut on desktop.

This is the default behavior of MSI-based installs. Shortcuts and some other entry points into apps will trigger a check that files are still there. Why are you installing a file that you remove later?
Search this forum for DISABLEADVTSHORTCUTS for a solution that some have used. Visual Studio setups don't support the official solution described here under the ComponentId description:

http://msdn.microsoft.com/en-us/library/aa368007(VS.85).aspx

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Phil Wilson