alley77564536.html was setup in your working website directory to allow usage of Synchro View without saving your working file prior to Alleycode v2.13. Alleycode still uses temporary alley77564536.html. However, these files are now generated either in your executable (application) or root Dir and incorporate a cleanup routine which deletes the temporary viewing file (alley77564536.html) on exit.
Anyways, If you find an old alley77564536.html file in your website building folder you can safely delete it.
