Removing cracktro

04 January 2010, 09:03

Hello,

even it is a bit late: Happy new year to all of you!

My problem: Is it possible to remove the cracktro from a disk? I know, I could just klick LMB, but I am interested in.
Thx for helping!

StingRay · 04 January 2010, 09:19

Yes it is, if it's a standard DOS disk you just need to edit the startup-sequence, if it's a trackloading disk (NDOS) you can't remove the intro without coding knowledge.

s2325 · 04 January 2010, 09:21

You can also delete file with cracktro if you don't know how to edit startup sequence but editing is better idea.

Graham Humphrey · 04 January 2010, 10:57

But if you deleted the file without editing the startup-sequence wouldn't that cause the startup to fail?

s2325 · 04 January 2010, 11:27

? I'm not sure, it should do next step, but maybe not.

waal · 04 January 2010, 11:41

No it won't. You have to edit the startup sequence or it will break and then you'll have to enter the game executable name in CLI to play.

zipper · 04 January 2010, 11:54

Startup-sequence itself continues even after fatal error if started with failat 21 line.

StingRay · 04 January 2010, 12:22

Quote:

Originally Posted by zipper

Startup-sequence itself continues even after fatal error if started with failat 21 line.

Thing is, most games don't have any fail at xx line

Carlos Ace · 04 January 2010, 22:54

Quote:

Originally Posted by StingRay

(...), if it's a trackloading disk (NDOS) you can't remove the intro without coding knowledge.

If the cracktro doesnt have any code that makes the needing of runing of it, its easy for everyone (you only have to look to the bootblock and find what´s the address wheres the intro is loaded and remove the jump instruction to begin the intro).

But if the game needs it, you have to look "inside" the intro to know what kind of code the game needs to run and to where (address) is move and make a routine to load only that code (i allways used the same load routine in the bootblock that loads the intro, but to load only that code but without the jump instruction).

StingRay · 04 January 2010, 23:00

Quote:

Originally Posted by Carlos Ace

If the cracktro doesnt have any code that makes the needing of runing of it, its easy for everyone (you only have to look to the bootblock and find what´s the address wheres the intro is loaded and remove the jump instruction to begin the intro).

And that means what? You need at least some coding knowledge to do that... Nothing else I said!

Carlos Ace · 04 January 2010, 23:05

Quote:

Originally Posted by StingRay

And that means what? You need at least some coding knowledge to do that... Nothing else I said!

Theres´s some old utils that removes the jump routine and with that the intro will not appear.

Another thing, i only reforce what you said, but only with a little info ...

Cheers and Happy new Year !!!!!!

StingRay · 04 January 2010, 23:58

Quote:

Theres´s some old utils that removes the jump routine and with that the intro will not appear.

I know that such utils exist, however, they can't work with custom bootblock intros f.e. or if the intro is loaded with a custom trackloader etc.

So you'll still need coding knowledge anyway if you want to remove them.

Happy New Year =)

locksmith · 17 November 2016, 08:26

hi what a jumper and where do I find the utils

Octopus66 · 17 November 2016, 17:36

04 January 2010, 09:03	#1
KingNothing Posts: n/a	Removing cracktro Hello, even it is a bit late: Happy new year to all of you! My problem: Is it possible to remove the cracktro from a disk? I know, I could just klick LMB, but I am interested in. Thx for helping!

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04 January 2010, 09:19	#2
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	Yes it is, if it's a standard DOS disk you just need to edit the startup-sequence, if it's a trackloading disk (NDOS) you can't remove the intro without coding knowledge.

04 January 2010, 09:21	#3
s2325 Zone Friend Join Date: Jun 2006 Location: Gargore Age: 43 Posts: 17,789	You can also delete file with cracktro if you don't know how to edit startup sequence but editing is better idea.

04 January 2010, 10:57	#4
Graham Humphrey Moderator Join Date: Jul 2004 Location: Norwich, Norfolk, UK Age: 37 Posts: 11,167	But if you deleted the file without editing the startup-sequence wouldn't that cause the startup to fail?

04 January 2010, 11:27	#5
s2325 Zone Friend Join Date: Jun 2006 Location: Gargore Age: 43 Posts: 17,789	? I'm not sure, it should do next step, but maybe not.

04 January 2010, 11:41	#6
waal Registered User Join Date: Dec 2008 Location: Paris / France Age: 49 Posts: 137	No it won't. You have to edit the startup sequence or it will break and then you'll have to enter the game executable name in CLI to play.

04 January 2010, 11:54	#7
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,838	Startup-sequence itself continues even after fatal error if started with failat 21 line.

17 November 2016, 08:26	#13
locksmith Registered User Join Date: Sep 2015 Location: south east Posts: 112	hi what a jumper and where do I find the utils

17 November 2016, 17:36	#14
Octopus66 Registered User Join Date: Feb 2016 Location: London Posts: 335

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