This has often been discussed in the Microsoft news group. Here is the general response: 98 can utilize up to 2G of real memory. There is a bug in vcache management that requires vcache to be limited to 512M when you install more than 512M or real memory however. The question isn't "Is Windows 98 recommended for up to 256M", the question is do you have a need for that much memory. That is something that only you can answer. If you have heavy paging activity then installing additional RAM will boost overall performance. If you're not paging heavily, the system will still make use of the memory, but you won't see much an improvement in system performance. Launch sysmon (start->programs->accessories->system tools) and monitor swapfile in use. If it gets over 15-20M and stays there (or higher) for extended periods of time, then you might benefit from more real memory. > Walter Clayton Microsoft MVP (MPS-D) & EZA End of message. soccer coach