That handles it perfectly. I want to thank both you, Sergey, and George Trasker for your advice.


>VFP registry class can handle only string values. You can download registry class from http://west-wind.com/wwvfppd.htm that works integer values also.

? oReg.ReadRegistryInt(HKEY_CURRENT_USER, ;
>         "Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced", ;
>         "HideFileExt")
>

>
>>Thanks, Sergey. Maybe you could help me further: I am getting an error -106 : "data type for value is not a data string".
>>
>>I see in the registry the HideFileExt type is REG_DWORD.
>>
>>My code is:
>>
>>SET proc to HOME()+"samples\classes\registry.prg"
>>o=CREATEOBJECT("registry")
>>? TRANSFORM(o.getregkey("HideFileExt", @cValue, "Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced", HKEY_CURRENT_USER)