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The unofficial Windows 98 SE Service Pack 2.1a was certainly a worthwhile install on my 98SE computer (running more than 512 MB of RAM). However, Service Pack 2.1a is also available from, as well as downloads of additional and more recent updates. Service Pack 2.1a does not include security and other updates for Internet Explorer.
Thus, also consider downloading the \'Unofficial Internet Explorer (IE) 6.0 SP1 for Windows 98/98 SP1/98 SE/ME Cumulative\' 7-24-2010 update available from. There are several discussions of 98SE\'s RAM limitations on this forum. View by entering \'98SE RAM limitation\' in the MSFN Search field. @mst3kpimp: For 98SE, if you want to run with up to 1 GiB, all you need is either: Add a \'MaxFileCache=393216\' (without the double inverted-commas) line under the section [VCache], both in SYSTEM.INI and in SYSTEM.CB, and if the [VCache] section does not already exist, one should create it. It is described in, although MS doesn\'t mention SYSTEM.CB (which is needed for Safe Mode) and suggests using MaxFileCache=524288 (which has been demonstrated by practice to be too much in many occasions). This is one approach that does work.
Or Install, without ever having to edit either SYSTEM.INI or SYSTEM.CB. It just works! Now, if you want to run with > 1 GiB, then it gets somewhat more complicated. If this is the case, please do refer to the apposite thread for which a link exists in the left side of my signature. Windows 98 was never tested or designed for more than 512mb of ram.
There are patches and \'workarounds\' for this, but youd be better of upgrading to a newer OS that was designed for this. Windows 95 and later have a fatal design flaw with how memory is used that doesnt exist in windows xp or later. You really need to upgrade Gosh! Who\'s to say what\'s better for the original poster\'s circumstances and requirements? Mst3kpimp didn\'t ask about the shortcomings of one OS compared to another. To help better answer his/her question, you should read around the 9x forums a bit -.
Mst3kpimp, My recollection is that \'Windows 98 SE Service Pack 2.1a\' includes a number of 98SE tweaks, such as replacing the \'defrag.exe\' file from Windows 98SE with the updated \'defrag.exe\' from Windows ME. Nuketown 2025 download. The \'Unofficial Service Pack 3 (beta 4)\' may or may not include the same tweaks. So I recommend installation of SP 2.1a first, whether or not you install SP 3(beta 4). I also recall that SP 2.1a creates or modifies the [VCache] MaxFileCache entry in the \'system.ini\' file. If so, by installing SP 2.1a, you won\'t have to modify the \'system.ini\' file manually.
\'MaxFileCache=393216\' is a fairly safe setting for most 98SE computers, but may not be optimum. For example, my 98SE computer is set at \'MaxFileCache=457216\'. When you open and then close programs on your computer, Windows 98SE will save or cache the closed programs in memory, up to the \'MaxFileCache\' entry (making reloading faster for these previously closed programs). If the \'MaxFileCache\' is absent or set too high, Windows may create such a large cache, that memory management problems may start to occur, especially for computers using more than 512MB of RAM.
Unmodified Windows 95, 98, 98SE or ME can malfunction or crash when more than 512MB of RAM is. Download Windows 95/98/SE/ME RAM Limitation Patch.
Memory that Windows uses for \'MaxFileCache\' is also used by AGP video (how much depends on the system bios settings of \'AGP Aperture\'). If \'AGP Aperture\' is set at minimum or very low in the BIOS settings (or disabled in Windows), \'MaxFileCache\' can be increased. If \'AGP Aperture\' is set at maximum or very high in the BIOS settings, \'MaxFileCache\' should be decreased. For computers using less than 512MB of RAM, \'MaxFileCache\' also should be decreased. Windows 98 was never tested or designed for more than 512mb of ram.
...'>Windows 9598seme Ram Limitation Patch(13.02.2019)The unofficial Windows 98 SE Service Pack 2.1a was certainly a worthwhile install on my 98SE computer (running more than 512 MB of RAM). However, Service Pack 2.1a is also available from, as well as downloads of additional and more recent updates. Service Pack 2.1a does not include security and other updates for Internet Explorer.
Thus, also consider downloading the \'Unofficial Internet Explorer (IE) 6.0 SP1 for Windows 98/98 SP1/98 SE/ME Cumulative\' 7-24-2010 update available from. There are several discussions of 98SE\'s RAM limitations on this forum. View by entering \'98SE RAM limitation\' in the MSFN Search field. @mst3kpimp: For 98SE, if you want to run with up to 1 GiB, all you need is either: Add a \'MaxFileCache=393216\' (without the double inverted-commas) line under the section [VCache], both in SYSTEM.INI and in SYSTEM.CB, and if the [VCache] section does not already exist, one should create it. It is described in, although MS doesn\'t mention SYSTEM.CB (which is needed for Safe Mode) and suggests using MaxFileCache=524288 (which has been demonstrated by practice to be too much in many occasions). This is one approach that does work.
Or Install, without ever having to edit either SYSTEM.INI or SYSTEM.CB. It just works! Now, if you want to run with > 1 GiB, then it gets somewhat more complicated. If this is the case, please do refer to the apposite thread for which a link exists in the left side of my signature. Windows 98 was never tested or designed for more than 512mb of ram.
There are patches and \'workarounds\' for this, but youd be better of upgrading to a newer OS that was designed for this. Windows 95 and later have a fatal design flaw with how memory is used that doesnt exist in windows xp or later. You really need to upgrade Gosh! Who\'s to say what\'s better for the original poster\'s circumstances and requirements? Mst3kpimp didn\'t ask about the shortcomings of one OS compared to another. To help better answer his/her question, you should read around the 9x forums a bit -.
Mst3kpimp, My recollection is that \'Windows 98 SE Service Pack 2.1a\' includes a number of 98SE tweaks, such as replacing the \'defrag.exe\' file from Windows 98SE with the updated \'defrag.exe\' from Windows ME. Nuketown 2025 download. The \'Unofficial Service Pack 3 (beta 4)\' may or may not include the same tweaks. So I recommend installation of SP 2.1a first, whether or not you install SP 3(beta 4). I also recall that SP 2.1a creates or modifies the [VCache] MaxFileCache entry in the \'system.ini\' file. If so, by installing SP 2.1a, you won\'t have to modify the \'system.ini\' file manually.
\'MaxFileCache=393216\' is a fairly safe setting for most 98SE computers, but may not be optimum. For example, my 98SE computer is set at \'MaxFileCache=457216\'. When you open and then close programs on your computer, Windows 98SE will save or cache the closed programs in memory, up to the \'MaxFileCache\' entry (making reloading faster for these previously closed programs). If the \'MaxFileCache\' is absent or set too high, Windows may create such a large cache, that memory management problems may start to occur, especially for computers using more than 512MB of RAM.
Unmodified Windows 95, 98, 98SE or ME can malfunction or crash when more than 512MB of RAM is. Download Windows 95/98/SE/ME RAM Limitation Patch.
Memory that Windows uses for \'MaxFileCache\' is also used by AGP video (how much depends on the system bios settings of \'AGP Aperture\'). If \'AGP Aperture\' is set at minimum or very low in the BIOS settings (or disabled in Windows), \'MaxFileCache\' can be increased. If \'AGP Aperture\' is set at maximum or very high in the BIOS settings, \'MaxFileCache\' should be decreased. For computers using less than 512MB of RAM, \'MaxFileCache\' also should be decreased. Windows 98 was never tested or designed for more than 512mb of ram.
...'>Windows 9598seme Ram Limitation Patch(13.02.2019)