CODEWITHSUNDEEP
vbscriptwmi
Dshiz
Dshiz

Reputation: 3331

Why wont this WMI script read my registry string value?

I'm using the examples from technet to try to read a dword / string from HKLM\Microsoft\Windows\CurrentVersion\Run called MyStartupExe.. It is returning empty.. This regular example works:

Const HKEY_CURRENT_USER = &H80000001
strComputer = "."
Set oReg=GetObject( _
   "winmgmts:{impersonationLevel=impersonate}!\\" &_
    strComputer & "\root\default:StdRegProv")
strKeyPath = "Console"
strValueName = "HistoryBufferSize"
oReg.GetDWORDValue _
   HKEY_CURRENT_USER,strKeyPath,strValueName,dwValue
WScript.Echo "Current History Buffer Size: " & dwValue

My adaptation of it does not work. The string and dword value exists in the registry at the key path I'm looking for.

const HKEY_LOCAL_MACHINE = &H80000002
strComputer = "."
Set oReg=GetObject( _
   "winmgmts:{impersonationLevel=impersonate}!\\" &_
    strComputer & "\root\default:StdRegProv")
strKeyPath = "SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
strValueName = "MyStartUpExe"
oReg.GetDWORDValue _
   HKEY_LOCAL_MACHINE,strKeyPath,strValueName,dwValue
WScript.Echo "MyStartupExe" & dwValue

Upvotes: 0

Views: 4177

Answers (2)

MacG
MacG

Reputation: 271

Refer to the WMI StdRegProv class.

Or you could just use Shell.RegRead to read registry values where you don't know the values' datatype. If the return code of RegRead is 0 (success) a reg value exists, else if the return code will be some general error code, e.g. &h800xxxxx etc. then no reg value exists. To check your OS architecture type, query the Win32_Processor.Architecture value (where '0' = 'x86' or '9' = 'x64').

Upvotes: 0

Ansgar Wiechers
Ansgar Wiechers

Reputation: 200233

"MyStartUpExe" is most likely a REG_SZ value, not a REG_DWORD value, so you'll have to use GetStringValue() instead of GetDWORDValue().

oReg.GetStringValue HKEY_LOCAL_MACHINE, strKeyPath, strValueName, value
WScript.Echo "MyStartUpExe" & value

Upvotes: 1

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