DumbVersion Patches

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Chef's kiss!

This was fast...

If I may :

True, not needed but would like to kindly ask for this myself too, and not only for source file.

Is it possible: adding filename of file 2 (not the source file) and SHA-1 as an option?

This can be discussed ofc, but i find the simplicity compared with time and size very attractive.

I hope suggestions are welcome, because, this approach was speed-wise bad ass.

 

Lol...
I could make a patch of Windows 7 (~3 GB) with Windows 95 RTM OEM as source, not really interesting btw, but:
I could do it in less than 2 min, SmartVersion would use 30 + min and I could loose ~700 MB in delta compared to SmartVersion, with almost nothing, in comparison.
Even tried to zip the Windows 7 with absolutely all i got and still 300 MB more than DumbVersion.

 

I'm not arguing that DumbVersion is fast, but with SmartVersion, there are still gains, no matter how you look at conservation using:

Code:

-nbhashbits 24 -compressratio 522

Although the winnings from a couple to tens of megabytes are not so solved in its speed.

 

I only tested with -compressratio 192
More testing should be done ofc, I hope this can evolve further, my first impression was

 

192 can be extracted on 32 bit OS

 

PM.

 

I zipped file before making a patch (to keep original date/time stamp) as an experiment.
That worked well, but, say i'm a dumb patch maker sending this patch to an equal dumb receiver without telling what extension this file should have?
Would he/she assume output file would be .exe or .7z, target size would not be helpfull info.

Code:

DumbVersion Patcher
 /\_/\
( o.o )
 > ^ <
------------------------------------------------------------
Patch File:   office2007sp3-kb2526086-fullfile-de-de.dvp
Base File:    office2007sp3-kb2526086-fullfile-en-us.exe
Target Size:  323865251 bytes
Base Hash:    23DAAF1DCE4E60FBD47941395A95F8C5DBC1576D5F4BBDB4EE002FE11154738C
Target Hash:  1A8E16169AD686BB4C9D63BA78D220562423B9BD333601DF7DEFF1A0E344306B
------------------------------------------------------------
Press any key to continue . . .

To show some of my different files...

 

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@Enthousiast

I'm trying to figure out if I understand what the main goal of this project is.
Is it to have a single base WinOS ISO edition, and small DVP patch files for adding another architecture and/or language to quickly create another ISO?
So, basically it's to save disk space - one large ISO file + many small DVP files, instead of having many large ISO files?

Another question: Are DVP patch files going to be published on this thread, or does one create them on their own with the Creator EXE and some ISO files he/she might have at their disposal?

 

Great! The preliminary tests show that DVP has clear/clearly significant advantages over SVF in both creation & restore time and ease of use.

 

Use the following files for testing:
==============================================
3 SVF/DVP files of Targ created by Sour：

Code:

set Sour=zh-cn_windows_11_business_editions_version_25h2_updated_aug_2026_x64_dvd_eab7a27b_Autounattend.iso
set Targ1=zh-cn_windows_11_business_editions_version_25h2_updated_aug_2026_x64_dvd_eab7a27b.iso
set Targ2=zh-tw_windows_11_business_editions_version_25h2_updated_aug_2026_x64_dvd_fb31192c_Autounattend.iso
set Targ3=zh-tw_windows_11_business_editions_version_25h2_updated_aug_2026_x64_dvd_fb31192c.iso

File Size
----- -------------
Sour 8,846,409,728
Targ1 8,846,692,352
Targ2 8,785,002,496
Targ3 8,785,289,216

----------------------------------------------
Test the software and compression ratio:

smv3.60 -compressratio 9 (I use this frequently because it is faster.)
smv3.82 -compressratio 192
smv3.82 -compressratio 522
smv4.00 -compressratio 192
smv4.00 -compressratio 522
DVP1.22

----------------------------------------------
Create SVF/DVP Time Spent (second):

Code:

               Sour     Targ1   Targ2    Targ3     Total
smv3.60_c9      39      59       389      387       874
smv3.82_c192    40      89      2129     2098      4356
smv3.82_c522    40      85      1995     2148      4268
smv4.00_c192    39      87      2178     2211      4515
smv4.00_c522    40      87      2141     2124      4392
DVP1.22         18.43   10.96     14.46    14.5      58

----------------------------------------------
SVF/DVP File Size (KB):

Code:

              Targ1    Targ2     Targ3      Total
smv3.60_c9      89    632,994   632,998    1,266,082
smv3.82_c192    68    464,719   464,777      929,564
smv3.82_c522    68    437,300   437,355      874,724
smv4.00_c192    69    464,950   465,009      930,029
smv4.00_c522    69    437,480   437,554      875,104
DVP1.22         74    452,572   452,591      905,238

 

In .bat or .cmd files, even after using Auto-bulk mode: DumbVersionCreator <base_file>, the program will still pause at "Press Enter to exit." and you must wait for the Enter key to be pressed before continuing.

I hope to add a parameter that can automatically skip "Press Enter to exit."

Of course, I can use it at present

Code:

echo. | DumbVersionCreator <base_file>

or

Code:

<nul DumbVersionCreator <base_file>

skipped.

 

You forgot to link to the patches, where are they? The tool isnt much use without a patches right?