What happens with settings after deleting the executable file?

What happens with settings after deleting the executable file?

References

Reference NO 1

http://stackoverflow.com/questions/15199959/what-happens-with-settings-after-deleting-the-executable-file

Reference NO 2

http://www.tomshardware.com/forum/22440-63-changed-back-files-default-programs-messed

Reference NO 3

http://filext.com/faq/broken_exe_association.php

Reference NO 4

http://support.microsoft.com/kb/928634

Reference NO 5

http://www.wikihow.com/Delete-a-File-or-Folder-Showing-Error-%22Access-Is-Denied%22

Reference NO 6

http://www.richpasco.org/virus/exefile.html

Reference NO 7

http://superuser.com/questions/229563/how-to-delete-files-and-folders-that-cannot-be-deleted

Reference NO 8

http://www.wisegeek.com/what-is-an-exe-file.htm