Forum Discussion

scot1967's avatar
scot1967
Frequent Contributor
9 days ago

How To: Read data from the Windows Registry

Hello all, I have seen a few posts here about registry access and editing.  This is  how I retrieve data from the Windows registry using JavaScript.  I am using this to return the OS information an...
JDR2500's avatar
JDR2500
Frequent Contributor
8 days ago

Using VBScript we write string, DWORD and binary values anywhere in HKEY_CURRENT_USER using the following routine.

'Example usage:
'	SetRegistryValue ("Software\SmartBear\TestComplete\15.0", "EdgeReloadRequired", 1, "DWORD")
'___________________________________________________________________________________________________________________________________________________
Sub SetRegistryValue(s_KeyPath, s_ValueName, s_Value, s_Type)
	
   Const HKEY_CURRENT_USER = &H80000001
   strComputer = "."
   Set objRegistry = GetObject("winmgmts:\\" & strComputer & "\root\default:StdRegProv")
	
	If (s_Type = "DWORD") Then
		objRegistry.SetDWORDValue HKEY_CURRENT_USER, s_KeyPath, s_ValueName, s_Value
	ElseIf (s_Type = "Binary") Then 'If the registry is binary 
		uBinary = Split(s_Value) 'This will split up a string into an array using the space as a splitter. 
                'This will convert each segment of the array into hex rather than string
		For i = 0 To UBound(uBinary) : uBinary(i) = CByte("&H" & uBinary(i)) : Next 
                'This will write the array of hex values to a binary value in the registry
		Call objRegistry.SetBinaryValue(HKEY_CURRENT_USER, s_KeyPath, s_ValueName, uBinary) 
	ElseIf (s_Type = "String") Then
		objRegistry.SetStringValue HKEY_CURRENT_USER, s_KeyPath, s_ValueName, s_Value
	End If
   Set objRegistry = Nothing

End Sub

To read DWORD or String values from HKEY_CURRENT_USER we use this function:

'Example:
'	AtsGetRegistryValue ("Software\SmartBear\TestComplete\15.0", "EdgeReloadRequired", "DWORD")
'___________________________________________________________________________________________________________________________________________________
Function AtsGetRegistryValue(s_KeyPath, s_ValueName, s_Type)
	
   Const HKEY_CURRENT_USER = &H80000001
   strComputer = "."
   Set objRegistry = GetObject("winmgmts:\\" & strComputer & "\root\default:StdRegProv")
	If (s_Type = "DWORD") Then
		objRegistry.GetDWORDValue HKEY_CURRENT_USER, s_KeyPath, s_ValueName, AtsGetRegistryValue 'Assign the DWORD to the "Function". This 
                will make the DWORD the returned value for the function. 
	ElseIf (s_Type = "String") Then
		objRegistry.GetStringValue HKEY_CURRENT_USER, s_KeyPath, s_ValueName, AtsGetRegistryValue
	End If
  Set objRegistry = Nothing
   
End Function