Hi Sergey,

I still can't get it to work. What am I missing?

#DEFINE HKEY_LOCAL_MACHINE -2147483646
#DEFINE ERROR_SUCCESS 0

LOCAL lnOpenHKey, lcOpenKey, lnOpenResult
STORE "" TO lcOpenKey
STORE 0 TO lnOpenHKey, lnOpenResult

DECLARE Integer RegOpenKey IN Win32API ;
INTEGER nHKey, STRING cSubKey, INTEGER @nHandle

lnOpenHKey = HKEY_LOCAL_MACHINE
lcOpenKey = "System\\CurrentControlSet\\Control\\ComputerName\\ComputerName\\MyNewReg"
lnSuccess = RegOpenKey(lnOpenHKey, lcOpenKey, @lnOpenResult)
* Check if there was an ERROR
IF lnSuccess <> ERROR_SUCCESS
MESSAGEBOX(TRANS(lnSuccess), 64, "FAILED Open")
RETURN
ENDIF

lnSuccess == 87 && This is the value returned.

The key exists. I can see it with "RegEdit" I can open & delete it with "RegEdit" But not in code. I ran the ".prg" from "WestWind" The keys were created. But not deleted. I un-commented Rick's code for the deletion. But it failed.

FYI: VFP 6 SP5 on a Win2000 OS

Thanks for your patience
Mike