no it is not. The Win98 OS has only two problems right now.
The fact it will not forget anything. Meaning the memory keeps storing, and only programs, that destroys the data properly. Meaning the longer you keep 9x running with a program, the more chance it will stop working. Like for days at a time. However this has been taken care of by memory cleaner program, and the problem of memory leakage for the 95 days. However the problem does not affect long term usage.
The next problem is the 4gig limitation. Meaning FAT32 can only store a file of 3.99 gigs.
The only other problem is the 1gig limitation which can result in a reseting computer, but can be over come by setting up the memory management of a Bios, and the OS threw the reg files. Which I am not doing right now.
The next problem is being able to communicate files threw non- FAT32 systems. Meaning a file system like
NTFS ( XP file system ) or playstation 2 file system you will need a program to browse threw the file system.
Also a new kernels have been made to make XP/2000 programs compadible with 9x machines.
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For me the only real problem is using heavy file types, that abuse the usage of memory.
Of course if you are a programmer, you will be using short cut programming tools, that generate warning messages like
"This version expects a newer version of windows"
That message is not put their on purpose by a programmer, it is put their because they are using a third party complier, that has automatic functions.
A true windows program can run on any Windows OS up to 2.0. In fact you can install Windows 1.0 and modify the OS until you get to the point where you do not need any new OS. The idea OS is for usage with 0% garbage.
That is why Linux ( Unix ) has been kingpin OS for along time. Because of the ability to tons of work with limited amount of resources. However people use OSX because of the Apple consumer base. OSX is really a combination
Next, Unix, Apple progress. Which was perfect until "snow lepard, but perfected at Panther final.
Check out MSFN.org for more details on the 9X OS.
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I have been using my 98 OS for life. I have been wanting to switch to Amiga 4.0 for a very long time.