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

In reply to Perl registry reflection – How? by roteme

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