Perl registry reflection

roteme has asked for the wisdom of the Perl Monks concerning the following question:

Hi,

I would like to check if some program installed on Win machine.

I wrote the following simple code to check it:

use Win32::Registry;

# $SERVER_PLATFORM = x86 or x64 - i set it before in other function
if ($SERVER_PLATFORM eq "x86")
{
    $Registry = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{
+5C65E4AB-BDF9-4784-968F-2FC6151B1637}';
} else {
    $Registry = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{
+B2AE58F9-BF87-4345-9A48-B4C855A484FD}';
}

if ($HKEY_LOCAL_MACHINE->Open($Registry,$hkey) )
{
    print "Found Software YYY installed on the machine\n";
} else {
    print "Software YYY does not installed on the machine\n";
}
[download]

The above code successfully run on 32 bit machine.

On 64 bit machine the product ID exist only under the following registry path:

SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{B2AE58F9-BF87-4345-9A48-B4C855A484FD}

And doesn't exist under the default registry path (Wow6432Node folder):

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{B2AE58F9-BF87-4345-9A48-B4C855A484FD}

How I could make my program to read registry values on x64 bit machine from SOFTWARE\Microsoft\… and not from Wow6432Node folder

Please advice

Thanks

Comment on Perl registry reflection – How? Select or Download Code

Replies are listed 'Best First'.
Re: Perl registry reflection – How? by Anonymous Monk on Mar 19, 2012 at 06:59 UTC
Just do it? `$ echo %PROCESSOR_ARCHITECTURE% x86` [download]	[reply] [d/l]
Re^2: Perl registry reflection – How? by roteme (Acolyte) on Mar 19, 2012 at 09:14 UTC
The issue isn't to recognize the PROCESSOR_ARCHITECTURE - that i did in previous function in my full code and set `$SERVER_PLATFORM` accordingly - the issue/question is how can I control the reading of the Registry key in x64 machine: from: `HKEY_LOCAL_MACHINE\SOFTWARE` or: `HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node`	[reply] [d/l] [select]
Re^3: Perl registry reflection – How? by Anonymous Monk on Mar 19, 2012 at 14:04 UTC
Um, that is what just doesn't make any sense whatsoever. Its like saying I can tie my left shoe, how can I tie my right shoe? You have the code right there, change $Registry in the conditional to the 64 value, and you're done.	[reply]
Re: Perl registry reflection – How? by wwe (Friar) on Mar 21, 2012 at 11:37 UTC
Take a look at this node: Re: Scanning of 64 Bit registry There are a number of Microsoft articles referenced you may find usefull.	[reply]
Re^2: Perl registry reflection – How? by roteme (Acolyte) on Mar 28, 2012 at 12:31 UTC
I run Perl exe which compile by Cava Packager x86. As i wrote, On 64 bit machine i can't read registry from `HKEY_LOCAL_MACHINE\SOFTWARE` (x64 registry path) - Only from `HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node` Can someone give me an example how to implement it - read key from `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall` on x64 machine. Thanks	[reply] [d/l] [select]
Re^3: Perl registry reflection – How? by roteme (Acolyte) on Mar 29, 2012 at 04:38 UTC
Hi Monks, Can you please advice on my question above. Thanks	[reply]
Re^4: Perl registry reflection – How? by Anonymous Monk on Mar 29, 2012 at 04:45 UTC
Re^5: Perl registry reflection – How? by roteme (Acolyte) on Mar 29, 2012 at 07:13 UTC
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Perl registry reflection – How?