Custom Search
Join the PC homebuilding revolution! Read the all-new, FREE 200-page online guide: How to Build Your Own PC!
NOTE: Using robot software to mass-download the site degrades the server and is prohibited. See here for more.
Find The PC Guide helpful? Please consider a donation to The PC Guide Tip Jar. Visa/MC/Paypal accepted.
Results 1 to 4 of 4

Thread: DLL hacking...

  1. #1
    Join Date
    Dec 2001
    Location
    NEW ZEALAND
    Posts
    3,593

    Question DLL hacking...

    Hi there.


    I understand the concept behind DLL's and what they are for, but am wondering if it is at all possible to hack a DLL to make it do it's task differently.

    Naturally, you would need to know exactly what it is trying to do normally(the DLL), before you could begin to answer this question.

    "Why would you want to hack dll's?" I hear you ask.

    Well, in this particular case, I use a program which saves it's datafiles via a ZIP and UNZIP dll's.(zipdll.dll and unzdll.dll)

    The compression is preset at maximum, and I want to either bypass the compression totally, or at least make it lower then it is.

    WHY? - Using the currently high compression, datafiles take a very very long time to save and load, and I want to cut down on this loading/saving time.

    I am not actually sure if it is the host application(the EXE) which sets the compression-ratio, then hands the data to the dll, which hands control back to the host application once it has finished, or if it is fully the dll which accepts the data from the host, encodes it, then hands control back.

    ...i hope this question is making some kind of mad sence to some of you...
    Last edited by Mini-Me; 09-11-2006 at 02:06 AM.
    "An expert is someone who will tell you why you can't do something." - Alec Issigonis (designer of the Mini)

  2. #2
    Join Date
    Nov 2000
    Location
    The Mountain State
    Posts
    23,389
    Yes, dlls can be 'hacked' and if you look at someplace like http://www.virtualplastic.net/ there will a great deal of info on how to do it...but most of what they cover is for appearance changes.

    Now on to the problem at hand...no, it is not likely to help as it is probably like you guessed--the main exe sets the compression ratio.
    AV, Anti-Trojan List;Browser and Email client List;Popup Killer List;Portable Apps
    “When men yield up the privilege of thinking, the last shadow of liberty quits the horizon.” - Thomas Paine
    Remember: Amateurs built the ark; professionals built the Titantic."

  3. #3
    try using reshacker.

  4. #4
    Join Date
    Dec 2001
    Location
    NEW ZEALAND
    Posts
    3,593
    Thanks to both of you - I am checking both of those suggestions out now.
    Not really for a solution so much as to teach myself some more about the whole DLL concepts.
    "An expert is someone who will tell you why you can't do something." - Alec Issigonis (designer of the Mini)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •