Thanks Sergey,
So there is no need to uninstall the old DLL's then install the new ones.
The DLL version control doesn't kick in and keep both versions, dose it ?

>VFP9SP2 runtimes have the same names as VFP9 RTM or SP1 but higher version. If you followed a proper wat of installing your applicationthan installing SP2 version with runtimes included will effectively reaplace runtimes as well.
>
>>As there appears to be some problems leaving the the SP1 runtimes in place when upgrading to SP2, is there any documented correct way of uninstalling the SP1 runtimes and installing the SP2 runtimes.