Powershell finding services using a cmdlet dll
- by bartonm
I need to upgrade a dll assemblies, written in C#, in our installation. Before I replace the DLL file, I want to check if the file has a lock and if so display a message. How do I implement this in powershell?
I was thinking iterate through Get-Process checking dependencies.
Solved. I iterated through list looking a file path match.
function IsCaradigmPowershellDLLFree()
{
# The list of DLLs to check for locks by running processes.
$DllsToCheckForLocks = "$env:ProgramFiles\Caradigm Platform\System 3.0\Platform\PowerShell\Caradigm.Platform.Powershell.dll",
"$env:ProgramFiles\Caradigm Platform\System 3.0\Platform\PowerShell\Caradigm.Platform.Powershell.InternalPlatformSetup.dll";
# Assume true, then check all process dependencies
$result = $true;
# Iterate through each process and check module dependencies
foreach ($p in Get-Process)
{
# Iterate through each dll used in a given process
foreach ($m in Get-Process -Name $p.ProcessName -Module -ErrorAction SilentlyContinue)
{
# Check if dll dependency match any DLLs in list
foreach ($dll in $DllsToCheckForLocks)
{
# Compare the fully-qualified file paths,
# if there's a match then a lock exists.
if ( ($m.FileName.CompareTo($dll) -eq 0) )
{
$pName = $p.ProcessName.ToString()
Write-Error "$dll is locked by $pName. This dll must be have zero locked prior to upgrade. Stop this service to release this lock on $m1."
$result = $false;
}
}
}
}
return $result;
}
