DOCUMENT:Q115404 02-OCT-1999 [win3x] TITLE :ErrMsgs After Upgrade:"Port Is Currently..." or "System Error" PRODUCT :Microsoft Windows 3.x Retail Product PROD/VER:WINDOWS:3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows for Workgroups version 3.11 ------------------------------------------------------------------------------- SYMPTOMS ======== After you upgrade to Windows for Workgroups 3.11 from Windows 3.1, you receive one of the following error messages when you try to access a modem (or other serial device) or when you try to print: - Port is currently in use or is not supported by Windows. -or- - System Error. The operating system cannot open the specified port. -or- - LPTx is currently being used by another application CAUSE ===== These errors occur if Windows for Workgroups Setup does not correctly change the SYSTEM.INI file to include the new 386 enhanced mode communication device drivers. These errors can also occur under Windows for Workgroups version 3.11 when a third-party communication driver has replaced the COMM.DRV in the [BOOT] section of the SYSTEM.INI file. RESOLUTION ========== To correct this problem, edit the SYSTEM.INI file and make sure that the following lines exist in the [386Enh] section: device=vcomm.386 device=serial.386 device=lpt.386 MORE INFORMATION ================ Additional query words: 3.11 virtual device driver (VxD) vicomm.drv ====================================================================== Keywords : Technology : kbAudDeveloper kbWFWSearch kbWFW311 Version : WINDOWS:3.11 ============================================================================= 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 1999.