The Windows 32-bit protected-mode cache driver (Vcache) determines the maximum cache size based on the amount of RAM that is present when Windows starts. Vcache then reserves enough memory addresses to permit it to access a cache of the maximum sizeso that it can increase the cache to that size if needed. These addresses are allocated in a range of virtual addresses from 0xC0000000 through 0xFFFFFFFF (3 to 4 gigabytes) known as the system arena.
On computers with large amounts of RAM, the maximum cache size can be large enough that Vcache consumes all of the addresses in the system arena, leaving no virtual memory addresses available for other functions such as opening an MS-DOS prompt (creating a new virtual machine).
WORKAROUNDTo work around this problem, use one of the following methods:
Use the MaxFileCache setting in the System.ini file to reduce the maximum amount of memory that Vcache uses to 512 megabytes (524,288 KB) or less.
For additional information about how to use the MaxFileCache setting, click the article number below to view the article in the Microsoft Knowledge Base:
Q108079 32-Bit File Access Maximum Cache Size
Use the System Configuration utility to limit the amount of memory that Windows uses to 512 megabytes (MB) or less.
For additional information about how to use the System Configuration utility, click the article number below to view the article in the Microsoft Knowledge Base:
Q181966 System Configuration Utility Advanced Troubleshooting Settings
Reduce the amount of memory that is installed in your computer to 512 MB or less.
MAxwell
