VbScript To Delete Registry Value Data

deployexpert created the topic: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Hi everyone,

Need an urgent help. Need a script to delete a registry value. [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
“AppInit_DLLs”=”SAMPLE”

I only want to delete the data value “SAMPlE”

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Seriously? Well, you asked for it! 🙂 www.lmgtfy.com/?q=vbscript+delete+registry+value

deployexpert replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
While using the Google hint Ian gave you; you want to set an entry to empty (“”) and not delete it

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Thanks for ur help.
I only want to delete the value data = “SAMPLE” if it exist in [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
“AppInit_DLLs”=”SAMPLE”

The AppInit_DLLs has different values in it. Just want to delete the value “SAMPLE” in the value data

deployexpert replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Again, using what Ian pointed to:

1) read the current value
2) If Value = “SAMPLE” then Write value = “”
3) (Else do nothing)

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
this is my script but it does not delete the strvalue.

Option Explicit
Const HKEY_LOCAL_MACHINE = &H80000002

Dim strComputer
Dim objRegistry
Dim strKeyPath
Dim strValueName
Dim strValue
Dim arrValues
Dim intValue

strComputer = “.”
Set objRegistry=GetObject(“winmgmts:{impersonationLevel=impersonate}!\\” &_
strComputer & “\root\default:StdRegProv”)

‘Get String value
strKeyPath = “Software\Microsoft\Windows NT\CurrentVersion\Windows”
strValueName = “AppInit_DLLs”
strValue = “PGPmapih.dll”
objRegistry.GetStringValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName,strValue

‘Delete String value
strKeyPath = “Software\Microsoft\Windows NT\CurrentVersion\Windows”
strValueName = “AppInit_DLLs”
objRegistry.DeleteValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName,strValue

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Hi,

Try the below code and let me know…

‘
Const HKEY_LOCAL_MACHINE = &H80000002
strComputer = “.”

Set oReg=GetObject(“winmgmts:{impersonationLevel=impersonate}!\\” & _
strComputer & “\root\default:StdRegProv”)

strKeyPath = “Software\Microsoft\Windows NT\CurrentVersion\Windows”
strStringValueName = “AppInit_DLLs”

oReg.DeleteValue HKEY_LOCAL_MACHINE,strKeyPath,strStringValueName

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
TBH, you won’t get very far in packaging without some scripting skills.

I don’t normally spoon-feed, but what the hell…some array handling for you to pick the bones out of. It’s completely off the top of my head and untested:

Dim blnResult
Dim arrRegValue
Dim strTempRegValue
Dim strTemp
Dim intArrayIndex_RegValue
Dim blnMatchFound

Const strRegValueSeparator = “,” ‘// or whatever the values are separated with
Const strSearch = “SAMPLE” ‘// this is the text you want removed from strValue

arrRegValue = Split(strValue, strRegValueSeparator)

strTempValue = “”

For intArrayIndex_RegValue = 0 To UBound(arrRegValue)
strTemp = arrRegValue(intArrayIndex_RegValue)
blnResult = StringMatch(strTemp, strSearch, blnMatchFound)
If blnResult Then
If Not blnMatchFound Then
‘// The strings didn’t match the one we’re searching for so add it to the temporary variable
If Len(strTempValue) = 0 Then
strTempValue = strTemp

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Dim blnResult
Dim arrRegValue
Dim strTempRegValue
Dim strTemp
Dim intArrayIndex_RegValue
Dim blnMatchFound

Const strRegValueSeparator = “,” '// or whatever the values are separated with
Const strSearch = “SAMPLE” '// this is the text you want removed from strValue

arrRegValue = Split(strValue, strRegValueSeparator)

strTempValue = “”

For intArrayIndex_RegValue = 0 To UBound(arrRegValue)
strTemp = arrRegValue(intArrayIndex_RegValue)
blnResult = StringMatch(strTemp, strSearch, blnMatchFound)
If blnResult Then
If Not blnMatchFound Then
'// The strings didn't match the one we're searching for so add it to the temporary variable
If Len(strTempValue) = 0 Then
strTempValue = strTemp
Else
strTempValue = strTempValue & strRegValueSeparator & strTemp
End If
End If
End If
Next

'// Now write strTempValue to registry

'//=========================================================================================================
'// Name: StringMatch
'// Purpose: Checks if two strings match
'// Why not use 'If strFirst = strSecond', you're asking?
'// Well, the 'Equals' operator :
'// – is not very fast (at string comparison)!
'// – compares strings left to right and is smart enough to stop comparing when it spots the first difference, but
'// – is too dumb to first do the most obvious test: comparing the lengths of the strings!
'// Input: strFirst – the first string
'// strSecond – the second string
'// blnMatch – a Boolean indicating whether or not the strings matched
'// Output: None
'// Returns: True/False
'//
'//=========================================================================================================
Function StringMatch(ByVal strFirst, ByVal strSecond, ByRef blnMatch)

StringMatch = True

blnMatch = False

If LenB(strFirst) = LenB(strSecond) Then
blnMatch = (InStrB(1, strFirst, strSecond, vbBinaryCompare) <> 0)
End If

End Function

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
@VBScab. Tnx so much for ur help. here’s a simple one that works but it deletes the whole value instead of the said value mention in script.
Dim WSHShell
Set WSHShell = WScript.CreateObject(“WScript.Shell”)
Dim returnval
returnval= WSHShell.RegRead(“HKLM\Software\Microsoft\Windows NT\CurrentVersion\Windows\AppInit_DLLs”)

if instr(returnval, “PGPmapih.dll”) > 0 then
‘”PGPmapih.dll” exists so set it to nothing
WSHShell.Regwrite “HKLM\Software\Microsoft\Windows NT\CurrentVersion\Windows\AppInit_DLLs” , “”
end if

applicationPackaging replied the topic: Re: VBSCRIPT TO DELETE REGISTRY VALUE DATA
Hi Guys. Tnx all for ur help. Got a working script at the end of the day and sharing it. Script is pasted below.

‘**********************************************************************************************************************************************
‘ This Script performs the following tasks
‘ 1. Checks the Users Permissions to the registry
‘ 2. If the user has access to write to the registry searches to see if the
‘ following registry key exists and return the values: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\APPINIT_DLLS
‘ Searches to see if PGPmapih.dll is a value and strips it out
‘ Replaces the PGPmapih.dll with blanks
‘ 3. Writes all errors etc… to a log file c:\winnt\temp\pgpmapih_fix.log
‘***********************************************************************************************************************************************

‘**************
‘Start of Code
‘**************

On Error Resume Next

Const ForWriting = 2
Set objFSO = CreateObject(“Scripting.FileSystemObject”)
Set objFile = objFSO.CreateTextFile(“C:\WINNT\Temp\pgpmapih_fix.log”, ForWriting)

‘Declare and Set any variables
pgpvalue = “PGPmapih.dll”
const HKEY_LOCAL_MACHINE = &H80000002
strComputer = “.”
Set oReg=GetObject(“winmgmts:{impersonationLevel=impersonate}!\\” &_
strComputer & “\root\default:StdRegProv”)

‘ Check Permissions to see if current user can write to registry
Set StdOut = WScript.StdOut
strKeyPath = “SYSTEM\CurrentControlSet”

oReg.CheckAccess HKEY_LOCAL_MACHINE, strKeyPath, KEY_QUERY_VALUE, _
bHasAccessRight
If bHasAccessRight = True Then
objFile.WriteLine (date & ” ” &Time &” User Has Query Value Access Rights”)
Else
objFile.WriteLine (date & ” ” &Time &” User Does Not Have Query Value Access Rights”)
End If

oReg.CheckAccess HKEY_LOCAL_MACHINE, strKeyPath, KEY_SET_VALUE, _
bHasAccessRight
If bHasAccessRight = True Then
objFile.WriteLine (date & ” ” &Time &” User Has Set Value Access Rights”)
Else
objFile.WriteLine (date & ” ” &Time &” User Does not have Set Value Access Rights”)
End If

oReg.CheckAccess HKEY_LOCAL_MACHINE, strKeyPath, KEY_CREATE_SUB_KEY, _
bHasAccessRight
If bHasAccessRight = True Then
objFile.WriteLine (date & ” ” &Time &” User Has Create SubKey Access Rights”)
Else
objFile.WriteLine (date & ” ” &Time &” User Does Not Have Set Create Subkey Access Rights”)
End If

oReg.CheckAccess HKEY_LOCAL_MACHINE, strKeyPath, DELETE, bHasAccessRight
If bHasAccessRight = True Then
objFile.WriteLine (date & ” ” &Time &” User Has Delete Access Rights”)
Else
objFile.WriteLine (date & ” ” &Time &” User Does Not have Delete Access Rights”)
End If

‘Change Path to PGP One
strKeyPath = “SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows”
strValueName = “AppInit_DLLs”

‘Search Registry to find the Key
oReg.GetStringValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName,strValue
objFile.WriteLine (date & ” ” &Time &” Value of Registry Key ” & strvalue)

if isnull(strKeyPath) then
objFile.WriteLine (date & ” ” &Time &” ERROR: Registry Key Path Not Found”)
objFile.Close
wscript.quit
else

If isNull(strvaluename) then
objFile.WriteLine (date & ” ” &Time &” ERROR: Registry Key Does Not Exist on PC”)
objFile.Close
wscript.quit
else

If strvalue = “” then
objFile.WriteLine (date & ” ” &Time &” Registry Key VALUE Is Blank”)
objFile.WriteLine (date & ” ” &Time &” No Need to Run Script, Now Quitting”)
objFile.Close
wscript.quit
else

objFile.WriteLine (date & ” ” &Time &” Registry Key Found”)

end if
end if

newstrvalue = instr(strvalue,pgpvalue)
if newstrvalue = 0 then
objFile.WriteLine (date & ” ” &Time &” PGP Value not found on machine”)
objFile.WriteLine (date & ” ” &Time &” No Need to Run Script, Now Quitting”)
objFile.Close
wscript.quit

else
End if
newstrvalue = Replace(strvalue,pgpvalue,””)
objFile.WriteLine (date & ” ” &Time &” Changing Registry key value to: ” & newstrvalue)

‘Write new Key
oReg.SetStringValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName,newstrValue
objFile.WriteLine (date & ” ” &Time &” SUCCESS: Values Written to Registry”)
objFile.WriteLine (date & ” ” &Time &” Closing Script… END…”)
End if
objFile.Close
Wscript.quit

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.