Hello,
I have tested your project and I cannot reproduce the behavior on a Windows 7 64-bit machine.
This type of error usually occurs when a custom action fails. Please send us the
verbose log of the installation to
support at advancedinstaller dot com so we can investigate it.
Also, please keep in mind that it's not safe to post your project, especially along side your source files. This is a public forum so everyone can have access to them.
Regards,
Mihai