Hello i´m trying to migrate from apache 2.2.21 to 2.2.22 on Windows 2003, but the installer file tell me, " I have to remove my actual version to install the new", that is correct ??
Some windows installers ask to remove the old binaries. Before doing anything make sure that all apache files and sites are backed up and that the restore is working fine (test on a VM).
If you are running a VM you can make a snapshot (this days you should run inside a VM anyways).
Copy the configuration files to be easily restore-able. A restore that requires 3 teams and 2 working days of downtime is almost useless.
Then run the upgrade. Test your components and after a while remove the VM snapshot.