DOCUMENT:Q124552 08-AUG-2001 [winnt] TITLE :User Account Limitation PRODUCT :Microsoft Windows NT PROD/VER:3.50 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 3.5 ------------------------------------------------------------------------------- SUMMARY ======= The recommended user account limitation in Windows NT version 3.5 is 15,000 users in any one domain, and only on "large" hardware. MORE INFORMATION ================ As a guideline for "large" hardware, a uniprocessor Pentium system with 32 megabytes (MB) of RAM can be configured to comfortably handle 10,000 users. To accommodate this number of users on such a system, the Registry size limit (RSL) must be set to 80 percent. For more information on the Registry size limit query on the following keyword in the Microsoft Knowledge Base: RSL The Pentium product discussed here is manufactured by Intel Corporation, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability. Additional query words: prodnt registry SAM ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT350search kbWinNTSsearch kbWinNTS350 kbWinNTS350search Version : 3.50 ============================================================================= 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.