64 bit registry question

[GEOSoft]

I'm witing a short registry script that must run on all architectures. I don't have a 64 bit box to test this on but I need to verify that this code is correct.

If @ProcessorArch = "X86" Then
   $rHive = "HKLM"
Else
   $rHive = "HKLM64"
EndIf

Thanks

Edit: If you test this, please let me know which architecture you tested it on ( ClipPut(@ProcessorArch) ).

Edited January 20, 2008 by GEOSoft

[martin]

I'm witing a short registry script that must run on all architectures. I don't have a 64 bit box to test this on but I need to verify that this code is correct.

If @ProcessorArch = "X86" Then
   $rHive = "HKLM"
Else
   $rHive = "HKLM64"
EndIf

Thanks

Just for my education, does a 64 bit processor necessarily have a 64 bit operating system?

(I could check your code on my son's computer when he releases his girlfriend from his bedroom, but someone else will probably answer before that.)

[GEOSoft]

Just for my education, does a 64 bit processor necessarily have a 64 bit operating system?

(I could check your code on my son's computer when he releases his girlfriend from his bedroom, but someone else will probably answer before that.)

Not necessarily. You can still run a 32 bit OS or application on a 64 bit machine. You just don't get the advantages of running 64 bit. As for your sons current status "No comment."

[martin]

Not necessarily. You can still run a 32 bit OS or application on a 64 bit machine. You just don't get the advantages of running 64 bit.

So in that case detecting X64 or IA64 doesn't mean that HKLM64 will exist, so maybe you should be detecting something else which tells you that a 64-bit OS is installed. Like If FileExist('@SystemDir\ndfetw.dll') which is only found on 64 bit versions of windows. (Only found on Vista, I'm getting confused.)

EDIT: Strike out rubbish.

Edited January 20, 2008 by martin

[Emiel Wieldraaijer]

I use something like this

$HKCU = "HKEY_CURRENT_USER"
$HKLM = "HKEY_LOCAL_MACHINE"
$HKU = "HKEY_USERS"
$HKCU = "HKEY_CURRENT_USER"
$HKCR = "HKEY_CLASSES_ROOT"
$HKCC = "HKEY_CURRENT_CONFIG"

If @ProcessorArch = "X64" Then
    $HKCU = "HKEY_CURRENT_USER64"
    $HKLM = "HKEY_LOCAL_MACHINE64"
    $HKU = "HKEY_USERS64"
    $HKCU = "HKEY_CURRENT_USER64"
    $HKCR = "HKEY_CLASSES_ROOT64"
    $HKCC = "HKEY_CURRENT_CONFIG64"
EndIf

maybe adding something like @OSType

will cover everything

Emiel

[GEOSoft]

So in that case detecting X64 or IA64 doesn't mean that HKLM64 will exist, so maybe you should be detecting something else which tells you that a 64-bit OS is installed. Like If FileExist('@SystemDir\ndfetw.dll') which is only found on 64 bit versions of windows. (Only found on Vista, I'm getting confused.)

EDIT: Strike out rubbish.

I think you are correct. @ProcessorArch won't do it. On the other hand I don't think @OSVersion will either.

I may have to do a RegRead() on a known 32 bit key and If @Error = 2 Then it's 64 bit.

[GEOSoft]

I use something like this

$HKCU = "HKEY_CURRENT_USER"
$HKLM = "HKEY_LOCAL_MACHINE"
$HKU = "HKEY_USERS"
$HKCU = "HKEY_CURRENT_USER"
$HKCR = "HKEY_CLASSES_ROOT"
$HKCC = "HKEY_CURRENT_CONFIG"

If @ProcessorArch = "X64" Then
    $HKCU = "HKEY_CURRENT_USER64"
    $HKLM = "HKEY_LOCAL_MACHINE64"
    $HKU = "HKEY_USERS64"
    $HKCU = "HKEY_CURRENT_USER64"
    $HKCR = "HKEY_CLASSES_ROOT64"
    $HKCC = "HKEY_CURRENT_CONFIG64"
EndIf

maybe adding something like @OSType

will cover everything

Emiel

That's pretty much what I was doing but I only used the one key as an example. However as martin just pointed out the keys are based on the Windows version and @OSVersion will bot return anything special for 64 bit that I know of.

[martin]

That's pretty much what I was doing but I only used the one key as an example. However as martin just pointed out the keys are based on the Windows version and @OSVersion will bot return anything special for 64 bit that I know of.

I think you need something like this

;IsOS64 returns true if OS is 64 bit
;IsWOW64Process function only exists on 64 bit windows
Func IsOS64()
    Local $hUser32 = DllCall("kernel32.dll", "ptr", "LoadLibrary", "str", "user32.dll")
    Local $OS64 = DllCall("kernel32.dll", "ptr", "GetProcAddress", "ptr", $hUser32[0], "str", "IsWow64Process")
    return $OS64[0] <> 0
endfunc

Edited January 21, 2008 by martin

[GEOSoft]

I think you need something like this

;IsOS64 returns true if OS is 64 bit
;IsWOW64Process function only exists on 64 bit windows
Func IsOS64()
    Local $hUser32 = DllCall("kernel32.dll", "ptr", "LoadLibrary", "str", "user32.dll")
    Local $OS64 = DllCall("kernel32.dll", "ptr", "GetProcAddress", "ptr", $hUser32[0], "str", "IsWow64Process")
    return $OS64[0] <> 0
endfunc

That's exactly what it needs martin. Thanks a lot. As a matter of fact I would suggest that this be posted on the Wiki and perhaps also included somewhere in the help file.

Here is what I finally came up with

Declare this with the other Global variables in your script

Global $kCR, $kCU, $kLM, $kU, $kCC
_Get_RegKeys()

Add these functions in your script.

Func _Get_RegKeys()
   If _64BitOS() Then
      $kCR = "HKCR64"
      $kCU = "HKCU64"
      $kLM = "HKLM64"
      $kU = "HKU64"
      $kCC = "HKCC64"
   Else
      $kCR = "HKCR"
      $kCU = "HKCU"
      $kLM = "HKLM"
      $kU = "HKU"
      $kCC = "HKCC"
   EndIf
EndFunc

Func _64BitOS();; Returns true if OS is 64 bit (credits go to martin)
   Local $hUser32 = DllCall("kernel32.dll", "ptr", "LoadLibrary", "str", "user32.dll")
   Local $OS64 = DllCall("kernel32.dll", "ptr", "GetProcAddress", "ptr", $hUser32[0], "str", "IsWow64Process")
   Return $OS64[0] <> 0
Endfunc

[james3mg]

My computer is dual-64-bit processors, but I'm running Vista 32-bit (don't ask...I need access to old drivers). If I run

MsgBox(0,"hi",@ProcessorArch)

the message box displays X86. And yes, I'm quite sure my processors are 64-bit: I've installed many flavors of 64-bit OSes on it before. I think that @ProcessorArch actually checks the OS arch, not what the processor's capable of. So...problem solved, no?

[GEOSoft]

My computer is dual-64-bit processors, but I'm running Vista 32-bit (don't ask...I need access to old drivers). If I run

MsgBox(0,"hi",@ProcessorArch)

the message box displays X86. And yes, I'm quite sure my processors are 64-bit: I've installed many flavors of 64-bit OSes on it before. I think that @ProcessorArch actually checks the OS arch, not what the processor's capable of. So...problem solved, no?

That could be, but I'm not sure that I would trust it as much as martins solution. I was using @ProcessorArch (see first post) but if that macro is doing what it is described as doing then it should be reporting 64 bit in your case. Your results would indicate to me that either the description for the macro is wrong or there is a bug in that code. Or there is the posibility that the macro is just named incorrectly and my original code is correct. I'll stay with martins solution until a dev can confirm what's happening here.

Thanks for the insight james.

[martin]

That's exactly what it needs martin. Thanks a lot. As a matter of fact I would suggest that this be posted on the Wiki and perhaps also included somewhere in the help file.

Here is what I finally came up with

Declare this with the other Global variables in your script

Global $kCR, $kCU, $kLM, $kU, $kCC
_Get_RegKeys()

Add these functions in your script.

Func _Get_RegKeys()
   If _64BitOS() Then
      $kCR = "HKCR64"
      $kCU = "HKCU64"
      $kLM = "HKLM64"
      $kU = "HKU64"
      $kCC = "HKCC64"
   Else
      $kCR = "HKCR"
      $kCU = "HKCU"
      $kLM = "HKLM"
      $kU = "HKU"
      $kCC = "HKCC"
   EndIf
EndFunc

Func _64BitOS();; Returns true if OS is 64 bit (credits go to martin)
   Local $hUser32 = DllCall("kernel32.dll", "ptr", "LoadLibrary", "str", "user32.dll")
   Local $OS64 = DllCall("kernel32.dll", "ptr", "GetProcAddress", "ptr", $hUser32[0], "str", "IsWow64Process")
   Return $OS64[0] <> 0
Endfunc

I''m glad you like that function GEOSoft, but when I said "something like this" that was my way of saying I haven't tried it. Do you know if it returns true on a 64 bit OS?

[GEOSoft]

I''m glad you like that function GEOSoft, but when I said "something like this" that was my way of saying I haven't tried it. Do you know if it returns true on a 64 bit OS?

We need someone to try that but it looks to me like it should. I'll leave it as is until we find someone running a 64 bit OS that can state categorically that it doesn't.

[Jon]

ProcessorArch returns X64 on my system (Vista 64bit). We were actually having a dev conversation about the bad naming of these macros.

Edit: that is, ProcessorArch returns the OS type of 32/64bit nothing to do with the actual processor!

[GEOSoft]

ProcessorArch returns X64 on my system (Vista 64bit). We were actually having a dev conversation about the bad naming of these macros.

That would seem correct Jon. The issue seems to be more of what should it return when running a 32 bit OS on a machine with a 64 bit processor. That's not your average setup I grant you, but the return could be critical as in the case james3mp has pointed out. BTW could you please (since you have 64 bit) check the code posted by martin and see if it returns True for your system? Thanks

[Jon]

That would seem correct Jon. The issue seems to be more of what should it return when running a 32 bit OS on a machine with a 64 bit processor. That's not your average setup I grant you, but the return could be critical as in the case james3mp has pointed out. BTW could you please (since you have 64 bit) check the code posted by martin and see if it returns True for your system? Thanks

x64 processor running x86 OS = x86. It should be called OSArch

[Emiel Wieldraaijer]

maybe a small documentation update

which explains @ProcessorArch displays OS Architecture and not the true ProcessorArchitecture

[Jon]

maybe a small documentation update

which explains @ProcessorArch displays OS Architecture and not the true ProcessorArchitecture

I think we need a true processorarch as well. Which tells if the chip is x64 or not regardless of OS type.

[GEOSoft]

I think we need a true processorarch as well. Which tells if the chip is x64 or not regardless of OS type.

I agree with this 100% but I can just hear the mumbles from Valik now. In the meantime I can switch the code back to @ProcessorArch but before I do that, did you test martins code with 64bit processor and 64 bit OS? it should return True. If it does then I'll leave my code as is so it doesn't get broken if you do change the macros. Assumably the existing @ProcessorArch would become @OSArch and a new @ProcessorArch developed.

[Jon]

Martin's code returned "False" here.