.dos .dat .nls


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Hello,

I've been puzzled by this for some time now:

I'm using JV16 Powertools to clean up my harddrive and especially my registrysettings. The last couple of times when I've had installed WindowsXP Professional, then after a while I removed the following registrysettings: .dat .dos .nls - JV16 Powertools v0.0.0.120 shows these registry as a green dot in its Registry Cleaner meaning that it's okay to delete them. But what exactly are these settings and what do they do, what purpose do they have when it's okay to delete them according to JV16 Powertools? :s

These registrysettings I'm talking about are located in HKEY_CLASSES_ROOT - there are alot of settings in HKEY_CLASSES_ROOT - so what makes .dat .dos .nls so exclusive ?

BTW: what is a file called "sysinfo.bch" doing in my root on my harddrive (C:) - I don't believe seeing it anywhere and there's no postings on the Internet on this file- that's really something :ermm:

Bye,

Fonzie

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.dos are commonly files in root of your c: after you upgraded OS or multiboot

if you had win9x, and installed win2k/xp you would have io.dos msdos.dos autoexec.dos config.dos

you don't really need them unless you multiboot

.dat files are data files:)...databases, game files, etc...you don't really need to execute those files or do anything with them. prolly that's why they suggest to remove them.

however some mpeg files(vcd) have exention of .dat

.nls files are "Code Page National Language Support" files

i wouldn't recommend to remove those entries.

they are pretty small and will not make any performance difference.

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Yeah, the NTUSER.DAT contains all your personal/desktop/color settings.

Hey, Geronimo, what happened to your other picture?

The other pic was better!

Happy New Year

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Hello,

Originally posted by MxxCon

.dos are commonly files in root of your c: after you upgraded OS or multiboot

if you had win9x, and installed win2k/xp you would have io.dos msdos.dos autoexec.dos config.dos

you don't really need them unless you multiboot

.dat files are data files:)...databases, game files, etc...you don't really need to execute those files or do anything with them. prolly that's why they suggest to remove them.

however some mpeg files(vcd) have exention of .dat

.nls files are "Code Page National Language Support" files

i wouldn't recommend to remove those entries.

they are pretty small and will not make any performance difference.

I don't multiboot or anything. I have done a clean NTFS format and only installed Windows XP Professional. I hate clutter. Things must be clean as possible because of experiences with friends having installed Windows on their computer;) I'm a former PPC Amiga user. So Windows is a mess at times. I'll leave the .dos .dat .nls registrysettings for now:)

thx for the reply

Bye,

Fonzie

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Hello,

Originally posted by Kheldar

Mcafee virusscan uses .dat files for virus definitions. I most certainly wouldnt reccomend deleting them :)

I'm not using Mcafee virusscan but Norton Antivirus 2002;)

The thing is; in the registry they have a key that says "NoOpen"!!?? Perhaps that just the way they should remain

!?- anyway thanx for the reply:)

Bye,

Fonzie

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Hello,

Originally posted by JustinLerner

Yeah, the NTUSER.DAT contains all your personal/desktop/color settings.

Happy New Year

I'm aware that I do not delete that file:D

thx

Bye,

Fonzie

BTW: Happy New Year to everyone on Neowin

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Hello,

Originally posted by Geronimo

i wouldnt remove any dat unless you know what it does. one controls some of your user settings

I will leave them there for the remaining time that I have Windows XP installed on my PC. Still it puzzles me, perhaps I should contact the author of jv16 Powertools to get an explaination!? The programmer must know why these settings are to be deleted.

Geronimo, bring back Optimus Prime as your avatar 'cause it was awesome:cool:

Bye,

Fonzie

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