Install with IIS on XP

Hi all

Have been writing Web Services in C# for a while now and have been waiting for PHP to catch up.  Very excited when I came across WSF/PHP so I downloaded it today.  Much agony when I try to install with IIS5.0, I am getting that classic '1PHP Warning: PHP Startup: Unable to load dynamic library 'E:\Dev\Code Samples\php-5.2.3-Win32\ext\wsf.dll' - The specified module could not be found. in Unknown on line 0 ' which always seems to crop up when extensions dont load on IIS - I am hoping someone can help me with this as I really want to check out WSF.

I have unpacked the binary into E:\Dev\Code Samples\wso2-wsf-php-bin-1.1.0-win32\, added E:\Dev\Code Samples\wso2-wsf-php-bin-1.1.0-win32\wsf_c\lib into the PATh variable and it is showing up in $ENV[PATH] in the phpinfo print.  My php install lives in E:\Dev\Code Samples\php-5.2.3-Win32 and I have copied wsf.dll into E:\Dev\Code Samples\php-5.2.3-Win32\ext. Then I added the following lines to my php.ini

[wsf]
wsf.home="E:\Dev\Code Samples\wso2-wsf-php-bin-1.1.0-win32\wsf_c"                      
wsf.log_path="E:\Dev\Code Samples\wso2-wsf-php-bin-1.1.0-win32\wsf_c\logs"
wsf.rm_db_dir="E:\Dev\Code Samples\wso2-wsf-php-bin-1.1.0-win32\wsf_c"
wsf.log_level = 3
extension=wsf.dll

I run phpinfo() to check the install is working but get the above error.  Since I can include other dll's from the ext directory I can only assume that wsf.dll is not picking the other libraries it needs, however the WSF install is in the $ENV[PATH] and $SERVER[PATH] variables.

Any help much appreciated.

Nick