My application throws 'Access denied' errors when writing temporary files in the installation directory where the executable resides. However it works perfectly well in Windows XP. How to provide access rights to Program Files directory in Windows 7?
How to make the program ask the user to elevate rights? (ie run program with full admin rights)
Your program should not write temporary files (or anything else for that matter) to the program directory. Any program should use %TEMP% for temporary files and %APPDATA% for user specific application data. This has been true since Windows 2000/XP so you should change your aplication.
The problem is not Windows 7.