PHP on W2K/IIS5 issues

I have install PHP 4.0.6 as per the install.txt. Everything is fine (in terms the test script runs), but it cannot load the some of the extensions. I get the following erros; Unable to load dynamic library 'c:\php\extensions/php_domxml.dll' - The specified module could not be found. Unable to load dynamic library 'c:\php\extensions/php_sablot.dll' - The specified module could not be found. Unable to load dynamic library 'c:\php\extensions/php_domxml.dll' - The specified module could not be found. Unable to load dynamic library 'c:\php\extensions/php_domxml.dll' - The specified module could not be found. Unable to load dynamic library 'c:\php\extensions/php_sablot.dll' - The specified module could not be found. Unable to load dynamic library 'c:\php\extensions/php_sablot.dll' - The specified module could not be found. The two files in question (php_domxml.dll and php_sablot.dll) are correctly located in 'c:\php\extentions'. I've noticed that the actually path is not quite right, in terms of mixed use of \ and /. Can this have anything to do with it? Do these two files need additional support files in order for them to work properly? Thanks in advance Roman