-1 error with _HexToString

[60aside]

Merry Christmas everyone.

I have a small script I am working with to search the registry and find the location of the PST files in Outlook.

Here is the Script :-

#include <string.au3>

For $i= 1 to 1000
    $var = RegEnumKey("HKCU\SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles", $i)
        If @error <> 0 then ExitLoop
    $sKeyPath = ("HKCU\SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\" & $var)
    
    For $ii= 1 to 1000
    $sKey = RegEnumKey($sKeyPath, $ii)
        If @error <> 0 then ExitLoop
    
    For $iii = 1 to 1000
        $sEnumPath = $sKeyPath & "\" & $sKey
            $sKeyVal = RegEnumVal($sEnumPath, $iii)
        If @error <> 0 Then ExitLoop
            
        If $sKeyVal = "001f6700" Then
            
        $sRegVal = RegRead ($sEnumPath, $sKeyVal)
        
        $PST = _HexToString($sRegVal)
        msgbox(0,"Hex",$sRegVal)
        msgbox(0,"String",$PST)
        EndIf
        
Next
Next
Next

The problem is the HEX string retrieved looks fine and is correct, but when I use _HexToString it gives me a -1 value instead of

the location of the PST file.

Can anyone advise where this is going wrong?

Thanks.

[60aside]

The above script is now working better since I installed Autoit v3.3.2.0, previously I was using v3.3.0.0

was this a bug in v3.3.0.0?