php-general@xxxxxxxxxxxxx while trying to use exec('IECapt.exe ' . escapeshellarg($website_url) . ' ' . escapeshellarg($cached_filename)); i get the following error Warning: exec() [function.exec]: Unable to fork [IECapt.exe "http://www.nepalnews.com.np" "C:/Inetpub/wwwroot/5531ed95934bee318939d9270b2db620.png"] ................... This piece of code is from http://www.zubrag.com/scripts/website-thumbnail-generator.php I couldn't figure out why this Unable to fork is occuring. I search php.net as well and it says, it might be related to permission issues. I'm using winxp and iis. I hope someone would help me with this. Regards Rajiv