Dear forum members, there is such a problem that if you make a client installation file and it is installed on disk C programfiles x86, then the launcher stops checking files! How to fix this problem? Who knows?
Probably you need administrator permission to make modifications under partition C:/ because of your system security. Your application is trying to make modification (add/install/alter/delete/replace) in a partition that must be managed by an administrator account.
If the .exe is not digitally signed with a digital certificate under a trusted CA, your operating system is gonna stop applications if these are about to make modification or installation of new files because your application is seen as a "stranger" or malware with dangerous potential and not recognized as a legit application.
Maybe adding your main and launcher .exe to DEP (Data Execution Prevention) in System Properties. This must be done by anyone is installing your client in C:/, otherwise use other partitions I guess?