ZendGuard installation

Site is coming up with error as below need zend gard installation and site up and ruining One more more files on this web site were encoded by ZendGuard and the required run-time support is not installed orproperly configured. For the Web site user This means that this Web server is not configured correctly to runthe files that it contains. Please contact the Web site'sadministrator/webmaster and inform them of this problem and give themthe URL you are trying to display to help them in diagnosing theproblem. For The Site Administrator/Web Master One or more files on your site were encoded with Zend Guard. Thismay be third party libraries that were provided to you by an ISV. Toallow these files to properly run you need to download and installone of the Zend guard run-time libraries. This is either ZendOptimizer or Zend Loader. The proper files can be downloaded from[login to view URL] software is provided free of charge. General Disclaimer: Zend Technologies is not responsible tothe configuration and setup of web sites using Zend Guard [login to view URL] contact your software vendor if these components were providedby an ISV or consult your Zend Guard Users Guide if these files wereencoded by your organization.