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Windows 7: security disallows App from loading DLLs from directory


05 Jan 2010   #1

windows 7
 
 
security disallows App from loading DLLs from directory

What security feature disallows applications from loading DLLs from their own directory?

I have two DLLs named ws2_32.dll and wsock32.dll. I also have an application that i want to utilize these two dlls rather then the ones in system32 but it apears that it doesn't. I ran a dependency scanner and found that in fact the application does load these two DLLs rather then the ones in system32 folder.

How i know its not working: the dlls are suppose to make a log file. It succeeded in making the log file on winXP but not Windows 7.
I found some one else having same problem but with vista but that could be fixed by doing the following:

'set the registry key "HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Image File Execution Options\DevOverrideEnable" to 1" '

However, i can't find the DevOverrideEnable field in my Windows 7 registry. so upon the suggestions of some friends i added the field in manually and set the value that didnt work either.

What i have tried:
On Admin account
Run as Admin
Set compatibility to xp
take ownership
turn off all security features that i could get my hands on

all of that and no luck please advise.

Thank you,
Astropirit


My System SpecsSystem Spec
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05 Jan 2010   #2

Windows 8.1 Pro (x64)
 
 

Check in C:\Users\[username]\AppData\Local\VirtualStore for your log files.
My System SpecsSystem Spec
06 Jan 2010   #3

windows 7
 
 

i looked in there but nothing is there.

does the registry entry " HKLM\ SYSTEM\CurrentControlSet\Control\Session Manager\KnownDLLs" have any thing to do with this problem? i tried taking off the dll with the same name off the list but it denied my permission.
My System SpecsSystem Spec
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06 Jan 2010   #4

Windows 7 Ultimate - 64-bit | Windows 8 Pro - 64-bit
 
 

Quote   Quote: Originally Posted by astropirit View Post
i looked in there but nothing is there.

does the registry entry " HKLM\ SYSTEM\CurrentControlSet\Control\Session Manager\KnownDLLs" have any thing to do with this problem? i tried taking off the dll with the same name off the list but it denied my permission.
Could tell me what are those dll and what program they are related too ??
My System SpecsSystem Spec
06 Jan 2010   #5

windows 7
 
 

Those DLLs are bassicaly pointer DLLs which i am using to make a tool for an application that is widly used but no longer supported. they are ws2_32.dll and wsock32.dll. the program is suppose to call these DLLs instead of the one in the system32 folder (which it does on my xp machine) and these DLLs create a packet log. basically recording the communication data between the application and a remote node. well that part is irrelevant, only telling because you asked.

I even ran 2 different dependency scanners on the applications and they tell me that the program will call the DLLs in the same directory which it apparently isn't, because if it did i would have the logs generated too.

Any suggestion would be very appreciated.
My System SpecsSystem Spec
06 Jan 2010   #6

Windows 8.1 Pro (x64)
 
 

The DLLs are made for Windows XP and not with Windows 7, is that correct?
My System SpecsSystem Spec
07 Jan 2010   #7

windows 7
 
 

they were made IN windows xp but they are designed to work with all versions of windows. there is nothing in the code that would stop it from working with windows 7. as long as bot operating systems operate on the same bit number it doesn't really matter.
My System SpecsSystem Spec
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 security disallows App from loading DLLs from directory




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