FYI: I'm very new to PS and I'm using this as a learning opportunity. Again, I'm trying to find a specific application on a list of multiple remote devices and determine the version number of the application on their corresponding host system. I attempted this via a registry query (found this to be challenging) and then I used Get-WMIObject. As of now, I'm working with this as my script. It's not producing any output; instead, it returns to the command prompt with no errors or messages.
Script to find specific application and version in multiple remote devices:
$Servers = Get-Content -Path C:\\files\Serverlist.txt
$CIMSession = New-CIMSession -ComputerName $Servers Get-Credentials
$Vendor = "App Name"
foreach($Serv in $Servers) {
If(Test-Connection -ComputerName $Serv -Count 1 -Quiet) {
$Status = Get-Ciminstance Win32_Product -Computername $Serv | Where-object {$_.Version -contains
$Vendor}
if($Status) {
Out-file -Filepath C:\\files\AppVerResults.txt
}
}
}
I also tried adjusting the following section of the script as shown below but it presented me with the error "Get-CimInstance : Access is denied." Is this error message due to group policy or so? I am able to remote into the device corresponding to the message via RDP.
if($Status) {
$Servers + " - "
$Status | Out-file -Filepath C:\\files\AppVerResults.txt
}
}
}
Should I go about it via invoke-command or registry query? I'm slowly picking things up so I'll continue my research but I was hoping to get some advice in the meantime.
I still believe searching the registry is the easier way to go unless you have the specific file path for the .exe.
Use this function to find software on a remote, or local PC. Theres a filter option by specifying -SoftwareName (to look for).
Find-Software -ComputerName Remote_ComputerName -SoftwareName 'SQL'Also accepts pipeline input, as well as multiple computer names to query for.
Find-Software -ComputerName ComputerOne, ComputerTwo, ComputerThree -SoftwareName 'SQL''ComputerOne','ComputerTwo' | Find-Software -SoftwareName 'SQL'Export-* cmdlet.Heres the code:
Function Find-Software {
[cmdletBinding()]
Param(
[Parameter(Mandatory=$false,
ValueFromPipeLine=$true,
ValueFromPipeLineByPropertyName=$true)]
[Alias('cn','name')]
[string[]]$ComputerName = $env:COMPUTERNAME,
[Parameter(Mandatory=$false)]
[String]$SoftwareName
)
Begin{
#Get Computer Names to check software version for
$Server_List = Get-Content -Path "C:\files\Serverlist.txt"
#Get Credentials for Script Scope once.
$Credentials = Get-Credential
}
Process{
if($PSBoundParameters.ContainsKey('SoftwareName')){
foreach($Computer in $ComputerName){
Try{
$PSSession = New-PSSession -ComputerName $Computer -Credential $Credentials -EnableNetworkAccess -ErrorAction Stop
$Software_List = Invoke-Command -ScriptBlock {
Get-ItemProperty "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*",
"HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*" } -Session $PSSession
$Software_List = $Software_List | Where-Object -FilterScript {$_.DisplayName -match $SoftwareName} | Sort-Object -Property DisplayName
foreach($Software in $Software_List){
if($Software){
[PSCustomObject]@{
"Computer Name" = $Computer
"Software Name" = $Software.DisplayName
" Version " = $Software.DisplayVersion
}
} else {
[PSCustomObject]@{
"Computer Name" = $Computer
"Software Name" = "Not found"
" Version " = $null
}
}
}
} Catch {
"Unable to connect to PC: $Computer"
"Error: $($Error[0].Message.Split('.')[1].Trim())"
}
}
} else {
foreach($Computer in $ComputerName){
Try{
$PSSession = New-PSSession -ComputerName $Computer -Credential $Credentials -EnableNetworkAccess -ErrorAction Stop
$Software_List = Invoke-Command -ScriptBlock {
Get-ItemProperty "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*",
"HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*" } -Session $PSSession
$Software_List = $Software_List | Sort-Object -Property DisplayName
foreach($Software in $Software_List){
[PSCustomObject]@{
"Computer Name" = $Computer
"Software Name" = $Software.DisplayName
" Version " = $Software.DisplayVersion
}
}
} Catch {
"Unable to connect to PC: $Computer"
"Error: $($Error[0].Message.Split('.')[1].Trim())"
}
}
} #end ELSE statement
} #end PROCESS block
End {
if(Get-PSSession){
Get-PSSession | Remove-PSSession
}
} #end END block - Perform Session Clean Up
} #end FUNCTION
Simply modify it to fit your needs :)