Microsoft KB Archive/216098

= PRB: Visual C++ IDE Slows When Files Are in Many Directories =

Article ID: 216098

Article Last Modified on 12/26/2006

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APPLIES TO


 * Microsoft Visual C++ 5.0 Enterprise Edition
 * Microsoft Visual C++ 6.0 Enterprise Edition
 * Microsoft Visual C++ 5.0 Professional Edition
 * Microsoft Visual C++ 6.0 Professional Edition
 * Microsoft Visual C++ 6.0 Standard Edition

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This article was previously published under Q216098



SYMPTOMS
While working in Visual C++ on a project with source files in many directories, the performance of the IDE may appear to be slow or non-responsive.



CAUSE
This can happen if you have your source files spread across 63 or more directories on FAT or FAT32 partitions. The method that Visual C++ uses to get file change notifications scans source files in the 63rd and above directories every 5 seconds.



RESOLUTION
Some possible resolutions are:
 * If your operating system is Windows NT or Windows 2000, place all of your source files on an NTFS partition.NOTE: If the project is on an NTFS partition, Developer Studio scans a single file so the amount of activity should be significantly less.


 * Place your source files in less than 63 directories.


 * Reduce the number of source files in the 63rd and above directories.



STATUS
This behavior is by design.



MORE INFORMATION
