To run IIS6 in 32bit mode you need to run these commands:
cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1 "C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe" -i
To run IIS6 in 32bit mode you need to run these commands:
cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1 "C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe" -i