DOCUMENT:Q101093 07-JUL-1993 [W_NT] TITLE :Borland Object Windowing Library-Based Programs Slow System PRODUCT :Windows NT PROD/VER:3.10 OPER/SYS:WINDOWS KEYWORDS: -------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT operating system version 3.1 - Microsoft Windows NT Advanced Server version 3.1 -------------------------------------------------------------------- SYMPTOM ------- Your screen saver may pause or freeze. Other applications may run slowly. Performance Monitor will show CPU usage at 100%, even if the Object Windowing Library-based application is running in the background, idle. CAUSE ----- Applications developed using Borland's Object Windowing Libraries slow down Windows NT because of the way they handle idle time. Their message loops are such that if no messages are available they execute IdleAction() which soaks up CPU cycles. The intention under Windows 3.1 was to provide a way to do things in the background. NO RESOLUTION ------------- There is no resolution at this time. Please contact Borland technical support for more information. Additional reference words: 3.10 owl ============================================================================= 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 1993.