>Hi Larry!
>At the client on this computer it is installed Win98 and VFP6.0 SP4.0 RunTime.
>I use code to get serial number:
>*-
>oFSO = CREATEOBJECT("Scripting.FileSystemObject")
>oDrive = oFSO.GetDrive("C")
>nVol = ABS(oDrive.SerialNumber)
>*-
>During several months all worked perfectly, but today ...
>at first line "Scripting.FileSystemObject is not found."

In that case, check to make sure SCRRUN.DLL is there and valid. Did you (or your client) install anything or uninstall anything that affect this?