public static async Task <DismFeatureInfo> EnableWindowsFeatures(string featureName,
DismProgressCallback dismProgressCallback)
{
if (string.IsNullOrWhiteSpace(featureName))
{
throw new ArgumentException();
}
DismApi.Initialize(DismLogLevel.LogErrors);
DismFeatureInfo retVal;
try
{
using (var session = DismApi.OpenOnlineSession())
{
DismApi.EnableFeatureByPackageName(session, featureName, null, false, true, new List <string>(),
dismProgressCallback);
retVal = DismApi.GetFeatureInfo(session, featureName);
}
}
finally
{
DismApi.Shutdown();
}
await Task.Delay(200).ConfigureAwait(false);
return(retVal);
}
public void PerformTreatment()
{
string featureName;
if (Environment.Is64BitOperatingSystem)
{
featureName = IE64BitName;
}
else
{
featureName = IE32BitName;
}
try
{
using (DismSession session = DismApi.OpenOnlineSession())
{
DismFeatureInfo info = DismApi.GetFeatureInfo(session, featureName);
if (
info.FeatureState == DismPackageFeatureState.NotPresent ||
info.FeatureState == DismPackageFeatureState.Removed ||
info.FeatureState == DismPackageFeatureState.Staged)
{
logger.Log("Internet Explorer 11 is not present on the system.");
return;
}
if (info.FeatureState == DismPackageFeatureState.UninstallPending)
{
logger.Log("Internet Explorer 11 is already pending uninstall.");
return;
}
try
{
logger.Log("Disabling Internet Explorer 11...");
DismApi.DisableFeature(session, featureName, null, true);
}
catch (DismRebootRequiredException ex)
{
logger.Log("Successfully disabled Internet Explorer 11. {0}", ex.Message);
return;
}
logger.Log("Successfully disabled Internet Explorer 11.");
}
}
catch (Exception ex)
{
logger.Log("An error occurred while disabling Internet Explorer: {0}", ex.Message);
}
}
public static async Task <DismFeatureInfo> GetWindowsFeatureInfo(string featureName)
{
DismApi.Initialize(DismLogLevel.LogErrors);
DismFeatureInfo retVal;
try
{
using (var session = DismApi.OpenOnlineSession())
{
retVal = DismApi.GetFeatureInfo(session, featureName);
}
}
finally
{
DismApi.Shutdown();
}
await Task.Delay(200).ConfigureAwait(false);
return(retVal);
}
public override bool ShouldPerformTreatment()
{
try
{
using (DismSession session = DismApi.OpenOnlineSession())
{
DismFeatureInfo info = DismApi.GetFeatureInfo(session, resolvedFeatureName);
if (
info.FeatureState == DismPackageFeatureState.NotPresent ||
info.FeatureState == DismPackageFeatureState.Removed ||
info.FeatureState == DismPackageFeatureState.Staged ||
info.FeatureState == DismPackageFeatureState.UninstallPending)
{
return(false);
}
}
}
catch
{
return(false);
}
return(true);
}
public async Task <bool> IsFeatureEnabledAsync(string featureName) => DismApi.GetFeatureInfo(await GetDismSessionAsync(), featureName).FeatureState == DismPackageFeatureState.Installed;
public static async Task <IEnumerable <KeyValuePair <string, DismFeatureInfo> > > GetWindowsFeatureInfo(
IEnumerable <string> featureNames)
{
var enumerable = featureNames as string[] ?? featureNames.ToArray();
if (!enumerable.Any())
{
throw new ArgumentException();
}
DismApi.Initialize(DismLogLevel.LogErrors);
var retVal = new List <KeyValuePair <string, DismFeatureInfo> >();
try
{
using (var session = DismApi.OpenOnlineSession())
{
retVal.AddRange(enumerable.Where(key => !string.IsNullOrWhiteSpace(key))
.Select(featureName => new KeyValuePair <string, DismFeatureInfo>(featureName,
DismApi.GetFeatureInfo(session, featureName))));
}
}
finally
{
DismApi.Shutdown();
}
await Task.Delay(200).ConfigureAwait(false);
return(retVal);
}