DOCUMENT:Q224392 10-AUG-2001 [winnt] TITLE :Error Message: The System Call Level Is Not Correct PRODUCT :Microsoft Windows NT PROD/VER:WINDOWS:95; winnt:3.51,4.0 OPER/SYS: KEYWORDS:kberrmsg kbtool ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server versions 3.51, 4.0 - Microsoft Windows 95 - Microsoft Windows 98 ------------------------------------------------------------------------------- SYMPTOMS ======== When you try to send a message using Server Manager to a user logged on to a computer running Windows 95 or Windows 98, you may receive the following error message: The system call level is not correct. CAUSE ===== This behavior occurs because Windows 95 and Windows 98 do not support this type of connection. RESOLUTION ========== Use the NET SEND command to send messages from a Windows NT server to users logged on to computers running Windows 95 or Windows 98. To receive this type of message, the computer running Windows 95 or Windows 98 must be running the WinPopup tool. For a computer running Windows NT to receive messages, the Messenger service must be running. By default, the Messenger service is configured to start automatically. STATUS ====== This behavior is by design. MORE INFORMATION ================ When you send a message using Server Manager, the sending computer attempts to establish a secure connection using Server Side Named Pipes functionality. The receiving computer then sends a broadcast of the message to all connected users. Computers running Windows 95 and Windows 98 do not support Server Side Named Pipes functionality. The NET SEND command uses Client Side Named Pipes functionality, which is supported by Windows 95 and Windows 98. For additional information, please see the following article in the Microsoft Knowledge Base: Q137143 WinPopup Utility Not Supported in Windows NT For information about configuring the WinPopup tool, please see the following article in the Microsoft Knowledge Base: Q132887 Err Msg: Unable to Start WinPopup Because No Compatible... Additional query words: ====================================================================== Keywords : kberrmsg kbtool Technology : kbWinNTsearch kbWinNT351search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS351search kbWin95search kbWin98search kbZNotKeyword3 kbWin98 Version : WINDOWS:95; winnt:3.51,4.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.