Windows 8/10 Client Support Fix

Eric said:

Not sure what post-1709 is, but yeah that's related to HideDll. I mentioned it somewhere in this thread before I think on how to fix that one too.

Click to expand...

Lowsir said:

Did Windows 1803 mess with v117.2? I think it got jacked again, or it might just be me..

Click to expand...

Selenedev said:

dinput8.dll download link crash

re-upload plz

Click to expand...

anhtanh95 said:

Through all the reasearch of @Eric at #21. Yep, the root cause is from WINAPI GetModuleFileNameW , i dont know why it happened, but i have found the way to fix it. It failed randomly when dinput8 call GetModuleFileNameW(0x400000, L"", 260) at 2 address for example: "0x538F2D02" and "0x5390AD14"..
As the document on MSDN:

PHP:

DWORD WINAPI GetModuleFileName(
  _In_opt_ HMODULE hModule,
  _Out_    LPTSTR  lpFilename,
  _In_     DWORD   nSize
);

Here is the result return when it failed.

PHP:

ReturnAddr(538F2D02)
The module file name is: "". Result returned: 0

ReturnAddr(5390AD14)
The module file name is: "". Result returned: 0
[BUG] DInput8Create return failed.

Here is the result return when it success.

PHP:

ReturnAddr(5DA02D02)
The module file name is: "C:\Users\Public\MapleV62\localhost.exe" . Result returned: 38

ReturnAddr(5DA1AD14)
The module file name is: "C:". Result returned: 3

As you can see, GetModuleFileNameW(0x400000, L"", 260) cannot return the path file name (the lpFilename = "" in this case) and return 0, so it made failed for DInput8Create. (Still don't know why it failed). After run client for 10+ time, i have realized that the first 4 bytes is change everytime you run the game, but the 4 last bytes never change. It is 0x2D02 and 0xAD14. So i have do more research with the result above:
1. I tried to modify and hardcode it to make lpFilename="C:\Users\Public\MapleV62\localhost.exe" and the return value is the length of lpFilename....and hell yeah.... it work perfectly every single time .
2.. As some research on the internet, it tried to make dinput8 to call GetModuleFileNameW(NULL, L"", 260); and it work perfectly too.
So, after 1. and 2., i has detouring the WINAPI GetModuleFileNameW to made it call this function:

You must be registered to see links

Here is the final result :laugh:

You must be registered to see links

Click to expand...

noamyoyo said:

hi im trying to understand what to do here and how to fix this problem i don't understand here anything, could any1 clarify this? ty

Click to expand...

ulfman said:

MOV EAX,0
change to
MOV EAX,DWORD PTR DS:[BF1AC8]

Click to expand...

Angxl said:

Try [0BF1AC8] instead

Click to expand...