>Hi all,
>
>One silly question, What is the command to check the current Logined ID?
>
>Thanks alot.
>Aston
Here is an API call for it: You can write a simple app that calls it yourself.

GetUserName
The GetUserName function retrieves the user name of the current thread. This is the name of the user currently logged onto the system.

Windows 2000/XP: Use the GetUserNameEx function to retrieve the user name in a specified format. Additional information is provided by the IADsADSystemInfo interface.

BOOL GetUserName(
LPTSTR lpBuffer, // name buffer
LPDWORD nSize // size of name buffer
);
Parameters
lpBuffer
[out] Pointer to the buffer to receive the null-terminated string containing the user's logon name. If this buffer is not large enough to contain the entire user name, the function fails. A buffer size of (UNLEN + 1) characters will hold the maximum length user name including the terminating null character. UNLEN is defined in Lmcons.h.
nSize
[in/out] On input, specifies the maximum size, in TCHARs, of the buffer specified by the lpBuffer parameter. On output, receives the number of characters copied to the buffer, including the terminating null character.
If the buffer is too small, the function fails GetLastError returns ERROR_MORE_DATA. The nSize parameter receives the required buffer size.

Return Values
If the function succeeds, the return value is a nonzero value, and the variable pointed to by nSize contains the number of TCHARs copied to the buffer specified by lpBuffer, including the terminating null character.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks
If the current thread is impersonating another client, the GetUserName function returns the user name of the client that the thread is impersonating.

Windows 95/98/Me: GetUserNameW is supported by the Microsoft Layer for Unicode. To use this, you must add certain files to your application, as outlined in Microsoft Layer for Unicode on Windows 95/98/Me Systems.

Example Code
For an example, see Getting System Information.