Usually, type libs are files with the
.tlb or
.olb (where olb is an
Office type library,
but the
o stands for object, not for Office).
PowerShell script to list type libraries
The following
PowerShell script iterates over the type libraries that are registered in the Registry and prints their libUUID, version (major.minor), name and the file system path of the type library itself.
set-strictMode -version latest
$null = new-psDrive -name HKCR -psProvider registry -root HKEY_CLASSES_ROOT
[Microsoft.Win32.RegistryKey] $regTypeLibs = get-item hkcr:/TypeLib
$last_guid = ''
foreach ($guid in $regTypeLibs.GetSubKeyNames()) {
$regTypeLib = $regTypeLibs.OpenSubKey($guid)
foreach ($version in $regTypeLib.GetSubKeyNames()) {
$regVersion = $regTypeLib.OpenSubKey($version)
$typeLibName = $regVersion.GetValue('')
foreach ($versionKey in $regVersion.GetSubKeyNames()) {
$regVersionKey = $regVersion.OpenSubKey($versionKey)
if ($versionKey -match '^\d+$') { # typically a zero ('0', but other numbers are also seen)
foreach ($winX in $regVersionKey.GetSubKeyNames()) {
$regWinX = $regVersionKey.OpenSubKey($winX)
$typeLibPath = $regWinX.GetValue('')
if ($guid -eq $last_guid) {
$guid_ = ''
}
else {
$guid_ = $guid
}
'{0,38} {1,8} {2,-100} - {3,5} {4} ' -f $guid_, $version, $typeLibName, $winX, $typeLibPath
$last_guid = $guid
}
}
}
}
}