My work station is WinXp system and my friend where I had to create it for has the new Vista and somewhere over 9000 pictures to be managed. On my system everything worked fine, but on my friends system i always got the error can not open file.

Further testing revealed that it was the OS at fault - Vista wasn't handling the memory usage for the application correctly. When it was run directly from the file explorer (versus in the PHP-GTK console) though, it worked just fine.

One thing is sure, the fifth version of this great programming language is much better than all the previous ones, and sooner or later it will become ubiquitous. But what to do until then? Is it possible to have the 'best of both worlds'?

Is it possible to have the both versions of PHP installed on the same computer without conflicts, so one can maintain old PHP 4 projects, and develop new PHP 5 code? The answer is, yes.

The author (Slobodan Pavkov) steps you through his solution:

• how to prepare the machine for the installation and what you need to download
• how to get things installed and configured
• and a simple test to make sure things are in order

The key to the seperation is editing the hosts file on the machine and placing the files in different directories - one for PHP5 files and another for PHP4.