Precautions for running the installation package on Windows XP in win7

1) the Windows XP installation package was installed under Windows 7 and encountered a problem during running. The reason is that the pr1_files directory of Windows 7 has the permission to write files.

This question has been found for a long time and is hereby recorded;
2) Security management in Windows 7 is much better than xp. When packets are captured, packet applications are discovered.ProgramFailed to read, debugging for a long time, the reason is that the win7 Firewall intercepted the package and shut down the Firewall

OK.

3)

Cause of Windows crash: If there is no write permission, the opened file handle FP is empty. fclose (FP) will cause an error.