PHP4 on IIS 5 with MsSQL 7.0

I seem to have a problem with this config... I have MS Windows 2000 Advanced Server running IIS 5 and I installed php4.01pl2 and MsSQL 7 enterprise, all worked great until I loaded the library for mssql7 in php.ini. What happens is when accessing php files, for example, a simple <? echo "it works"; phpinfo(); ?> returns everything fine usually on the first try. It does return that MsSQL support is there, from phpinfo() But if you access this file couple of times, inetinfo.exe starts to use 100% cpu and the web server hangs... If I do not load the php_mssql70.dll, than the server works great. Any ideas as to what this might be, and any work arounds? Any help would be really appriciated. Thanks. __ Kris.