#include <Crypt.au3>
#include <FileConstants.au3>

Global $sFilename, $dHash, $hFile
FileChangeDir(@ScriptDir)
$sFilename = 'selfupdate_test.exe'
$dHash = _Crypt_HashFile($sFilename, $CALG_SHA1)
$hFile = FileOpen('selfupdate_test_hash.bin', $FO_OVERWRITE + $FO_BINARY)
If $hFile <> -1 Then
	FileWrite($hFile, $dHash)
	FileClose($hFile)
EndIf