32bit masm app reading from 64bit registry

[ChillyWilly]

which version of windows are you guys running?

[sinsi]

Win7 RC x64

[dacid]

ChillyWilly .. I have the same problem here. If I use KEY_WOW64_64KEY I get an error 5 = "access denied" and if I dont use it, I can open the key but I cant read the value (error 2 = DONT_FOUND). I tried running as an Administrator and Disabling UAC with no sucess. Im on Windows 7 x64.

Let me know if you found what the problem is and the solution...

[ChillyWilly]

yea thats where im at too
not sure how its working on sinsi if its not working on us

[GregL]

It works for me if I remove the KEY_WOW64_64KEY.  Windows 7 Pro x64 retail.

[ChillyWilly]

what about reading the digitalproductid key?

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
DigitalProductId

[GregL]

what about reading the digitalproductid key?

Not without modifying your code quite a bit.  I can read it with PowerShell since I already had a script to do that. Good for retrieving the Windows Product Key.

[sinsi]

DigitalProductId is REG_BINARY, not REG_SZ, so yeah lots of modification to your code.

[ChillyWilly]

ok ill try to whip something up tomorrow and test it and ill post back if its not working

[dacid]

I have problems reading the "DigitalProductId"... the code works on Windows XP SP3 (x86) and Windows Vista SP2 (x86)... so it doesnt work in 64 bits Windows. Still dunno why.

I tried opening the key with:  KEY_QUERY_VALUE, KEY_READ and KEY_ALL_ACCESS and reading the "DigitalPRoductId" with REG_BINARY and REG_DWORD and as I said it works ok in 32 bits but fails in 64bits:

If I use KEY_WOW64_64KEY to open the key I get an error 5 = "access denied" and if I dont use it, I can open the key but I cant read the value "DigitalProductId" (error 2 = DONT_FOUND).

[dedndave]

i would be curious to see the results of the last attachment in this post...

http://www.masm32.com/board/index.php?topic=11963.msg90835#msg90835

if you browse through that thread, there are posted results from 64-bit OS's

[dacid]

Code Select Expand


DednDave OS Info Dump Ver 2.03

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
"ProductName"="Windows 7 Ultimate"
"CurrentVersion"="6.1"
"CurrentBuildNumber"="7600"
"SubVersionNumber"=(Value not found)
"CSDVersion"=(Value not found)
"BuildLab"="7600.win7_rtm.090713-1255"
"ProductId"=(Value not found)

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Media Center]
"Ident"="6.0"

OSVERSIONINFOEX Structure:

       Version.Build: 6.1.7600
         Platform ID: Win32 on Windows NT
         CSD Version:
Service Pack Version: 0.0
          Suite Mask: 0000000100000000
        Product Type: Windows 2000 Pro/XP/Vista Workstation

Press any key to exit



Im seeing right now the ProductId value in Regedit...  :eek

Im reading a lot on info online and in all examples they use KEY_WOW64_64KEY with success... why we get the "permission denied" error? ...

[dedndave]

that's what i mean - lol
i didn't do anything special in that program - i am pretty sure the source code is there   :bg

[dacid]

All people with 64 bits posted:  "ProductId"=(Value not found)

You need to use KEY_WOW64_64KEY  when open the key... but, at least here, I get the error code = 5 (access denied)

[dedndave]

maybe this article will help, even though it applies to installing AVG - the cure might be the same

http://www.copyrunstart.net/quick-fix-avg-antivirus-80-error-message-error-action-failed-for-registry-key/