I would like to compare two Servers registry keys to make sure they both match.
Something simple like this was the initial plan:
$remote1 = (invoke-command -computername hostname `
{Get-ItemProperty "HKLM:SOFTWAREVENDORAPPSUBFOLDER"})
$local1 = (invoke-command `
{Get-ItemProperty "HKLM:SOFTWAREVENDORAPPSUBFOLDER"})
$compare1 = Compare-Object $local1 $remote1
That works great for one single specified key but I have multiple keys with sub folders. I can't provide a list of the ones I want to check (and loop round) as I want to make sure nothing new has been added. So I was drawn down this route to get all the keys under a specified branch in the Registry (to get me a list):
$local1 = Get-ChildItem HKLM:SOFTWAREMICROSOFTDirectShow -Recurse `
-ErrorAction SilentlyContinue
So I now have an object that will tell me all the registry SUBFOLDERS on the server and I could then loop round using $local1.PSPath to give me all the paths but I noticed something in the object that was interesting:
$local1 | select -first 1 -prop *
This returns:
Property : {dbl3, dbl4, dbl5, dbl6…}
PSPath : A path
PSParentPath : A Parent Path
PSChildName : 0
PSDrive : HKLM
PSProvider : Microsoft.PowerShell.CoreRegistry
PSIsContainer : True
SubKeyCount : 0
View : Default
Handle : Microsoft.Win32.SafeHandles.SafeRegistryHandle
ValueCount : 8
Name : A Name
So the Object member "Property" contains what looks like an array of all the keys or is it a sub Object?
If it was a sub-object does it contain the keys values that I am looking to compare?
I could just snatch out the $local.Name member and loop round comparing using the code above and storing any differences but I just wondered if it would be more efficient to use the data that I already have if it contains the information I need?
I am hoping that someone could confirm that if I did:
$local1 = Get-ChildItem HKLM:SOFTWAREMICROSOFTDirectShow -Recurse `
-ErrorAction SilentlyContinue
$remote1 (invoke-command -computername remoteserver1 `
{Get-ChildItem HKLM:SOFTWAREMICROSOFTDirectShow -Recurse `
-ErrorAction SilentlyContinue})
When I do the compare am I actually comparing the keys and values match or just that keys exist? :
Compare-Object $local1 $remote1
To cut a long story short, I think I have all the data I need to compare that the Registry key values match (by running this):
$local1
Returns (extract):
Hive: HKEY_LOCAL_MACHINESOFTWAREMICROSOFTDirectShow
Name Property
—- ——–
Debug
DoNotUse
DoNotUseDrivers32
Preferred {00001602-0000-0010-8000-00aa00389b71} : {E1F1A0B8-BEEE-490D-BA7C-066C40B5E2B9}
{e06d8032-db46-11cf-b4d1-00805f6cbbea} : {E1F1A0B8-BEEE-490D-BA7C-066C40B5E2B9}
{00000160-0000-0010-8000-00aa00389b71} : {2eeb4adf-4578-4d10-bca7-bb955f56320a}
{41564D57-0000-0010-8000-00AA00389B71} : {82d353df-90bd-4382-8bc2-3f6192b76e34}
{e06d8026-db46-11cf-b4d1-00805f6cbbea} : {212690FB-83E5-4526-8FD7-74478B7939CD}
Am I correct and does anyone know how to access individual items from the $local1 object? Taking the example above, what is a Hive? Say I wanted the "00001602-0000-0010-8000-00aa00389b71" value how would I get it from the $local1 object.
A point to note that the servers are running Powershell 2 while I am testing on Powershell 4 (I can't test on a Production server). I mention this as running $local1 on the v2 servers I get a different output in that the properties do not seem to be in pairs.
Hive: HKEY_LOCAL_MACHINESOFTWAREMICROSOFTDirectShow
SKC VC Name Property
— — —- ——–
0 0 Debug {}
0 0 DoNotUse {}
0 0 DoNotUseDrivers32 {}
0 10 Preferred {{00000050-0000-0010-8000-00AA00389B71}, {e436eb80-524f-11ce-9f53-0020af0ba77…
Is this case where the v4 objects will do what I want but the v2 won't?