Write REG_MULTI_SZ value in registry

[Cpp_Com]

I want to write a REG_MULTI_SZ value (e.g 100-104) in registry. My code is like

HKEY objHKey;
CString strReturn;
CString subkey("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters");

// Open Registry key for Vlc Path
if( RegOpenKey( HKEY\_LOCAL\_MACHINE,
				(LPCTSTR)subkey,	// what to open
				&objHKey				// on success, handle goes here
				) == ERROR\_SUCCESS )
{
	unsigned char \* format =  new unsigned char \[100\];
	unsigned char p1\[5\] = "998";
	unsigned char p2\[5\] = "999";
	sprintf((char\*)format, "%s\\\\0%s\\\\0\\\\0", p1, p2);
	int ILenght = 20;//strlen(format);

	unsigned char \*ptr=  (unsigned char \*) strTemp.GetBuffer(0);
	
	if(ERROR\_SUCCESS != RegSetValueEx(objHKey,
					\_T("ReservedPorts"),
					NULL,
					REG\_MULTI\_SZ,
					//(BYTE\*)\_T("1000-1004"),
					ptr,
					strTemp.GetLength()))
					
	{
		AfxMessageBox(\_T("Failed to update in registry."));
	}
	
	// Close the registry
	RegCloseKey( objHKey );
}

But this is not updating in registry.

[Lost User]

      sprintf((char\*)format, "%s\\\\0%s\\\\0\\\\0", p1, p2);

The result of the above command will produce the string:

998\0999\0\0

which is obviously not what you want; the format string should be "%s\0%s\0\0". You also say that this is not updating in registry; do you get the error message or see some other problem? Are you running this code with administrator privileges and have you opened your registry key with the correct permissions for updating values?

Unrequited desire is character building. OriginalGriff

[ThatsAlok]

great 5p+

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers, Alok Gupta VC Forum Q&A :- I/IV Support CRY- Child Relief and You

[Lost User]

:thumbsup:

Unrequited desire is character building. OriginalGriff