注册无管理员权限的COM [英] Registering a COM without Admin rights
问题描述
我想把一个.net程序集注册为COM。
事实上，我知道的是，而不是 HKEY_CLASSES_ROOT 我想要在 HKEY_CURRENT_USER / Software / Classes 中写入条目，以便不需要UAC / Admin权限。
找到两个问题的解决方案，我都在努力：
1）程序化方式 ，具有以下代码：
IntPtr键;
var openKeyresult = RegOpenKeyEx（HKEY_CURRENT_USER，SOFTWARE\\Classes，0，（int）RegistrySecurity.KEY_WOW64_64KEY，out key）;
var overrideKeyResult = RegOverridePredefKey（HKEY_CLASSES_ROOT，key）;
var registerResult = Registrar.RegisterAssembly（GetAssembly（），AssemblyRegistrationFlags.SetCodeBase）;
在这种方法中， overrideKeyResult 对应于ERROR_INVALID_HANDLE，因此， RegisterAssembly 抛出一个访问被拒绝异常，因为它试图写入 HKEY_CLASSES_ROOT 。
注意：每次我运行 RegOpenKeyEx 键值不同， p>
2）使用regasm
/ regfile 标志，然后在生成的 .reg 文件中替换 code> HKEY_CLASSES_ROOT 出现 HKEY_CURRENT_USER / Software / Classes
认为应该工作，但是当我无法卸载我的Outlook AddIn时，如何取消注册这样的程序集？
，因为我看不到以同样的方式因为：
var openKeyresult = RegOpenKeyEx（HKEY_CURRENT_USER，SOFTWARE\\Classes，0，（int）RegistrySecurity.KEY_WOW64_64KEY， out key）;
为了什么是值得的，我写了一组C＃实用程序在用户注册表中注册/取消注册.NET类型（当然应该标记为ComVisible）而不要求regasm，也不要求UAC提示：
public static class ComUtilities
{
private const string ClsidRegistryKey = @Software\Classes \CLSID;
public static void RegisterComObjectInCurrentUser（Type type）
{
if（type == null）
throw new ArgumentNullException（type）;
RegisterComObjectInCurrentUser（type，new Uri（type.Assembly.Location）.ToString（））;
}
//此函数在HKEY_CURRENT_USER中注册一个.NET COM对象，以避免UAC提示
public static void RegisterComObjectInCurrentUser（type type，string assemblyPath）
{
if（type == null）
throw new ArgumentNullException（type）;
（RegistryKey key = EnsureSubKey（Registry.CurrentUser，Path.Combine（Path.Combine（ClsidRegistryKey，type.GUID.ToString（B）），InprocServer32）））
{
key.SetValue（null，mscoree.dll）;
key.SetValue（Assembly，type.Assembly.FullName）;
key.SeValue（Class，type.FullName）;
if（assemblyPath！= null）
{
key.SetValue（CodeBase，assemblyPath）;
}
key.SetValue（RuntimeVersion，v4.0.30319）;
key.SetValue（ThreadingModel，Both）;
}
使用（RegistryKey key = EnsureSubKey（Registry.CurrentUser，Path.Combine（ClsidRegistryKey，type.GUID.ToString（B）））
{
// cf http://stackoverflow.com/questions/2070999/is-the-implemented-categories-key-needed-when-registering-a-managed-com-compon
using（RegistryKey cats = EnsureSubKey （key，@Implemented Categories \ {62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}））
{
//不做任何特殊处理
}
var att = GetAttribute< ProgIdAttribute>（type）;
if（att！= null&&！string.IsNullOrEmpty（att.Value））
{
using（RegistryKey progid = EnsureSubKey（key，@ProgId））
{
progid.SetValue（null，att.Value）;
}
}
}
}
public static void UnregisterComObject（Type type）
{
using（RegistryKey key =注册表.CurrentUser.OpenSubKey（ClsidRegistryKey，true））
{
if（key == null）
return;
key.DeleteSubKeyTree（type.GUID.ToString（B），false）;
}
}
private static RegistryKey EnsureSubKey（RegistryKey root，string name）
{
RegistryKey key = root.OpenSubKey（name，true）;
if（key！= null）
return key;
string parentName = Path.GetDirectoryName（name）;
if（string.IsNullOrEmpty（parentName））
return root.CreateSubKey（name）;
使用（RegistryKey parentKey = EnsureSubKey（root，parentName））
{
return parentKey.CreateSubKey（Path.GetFileName（name））;
}
}
private static T GetAttribute< T>（ICustomAttributeProvider provider）其中T：属性
{
object [] o = provider.GetCustomAttributes （typeof（T），true）;
if（o == null || o.Length == 0）
return null;
return（T）o [0];
}
}
I want to register a .net assembly as COM.
In fact what that means as far as I know is, that instead of HKEY_CLASSES_ROOT I want the entries to be written in HKEY_CURRENT_USER/Software/Classes, so that UAC/Admin rights are not needed.
Found two solutions of that problem, with both I'm struggling:
1) Programmatically way, with following code:
IntPtr key;
var openKeyresult = RegOpenKeyEx(HKEY_CURRENT_USER, "SOFTWARE\\Classes", 0, (int)RegistrySecurity.KEY_WOW64_64KEY, out key);
var overrideKeyResult = RegOverridePredefKey(HKEY_CLASSES_ROOT, key);
var registerResult = Registrar.RegisterAssembly(GetAssembly(), AssemblyRegistrationFlags.SetCodeBase);
in this approach, overrideKeyResult is 6 which corresponds to ERROR_INVALID_HANDLE, thus, the RegisterAssembly throw a "access denied" exception because it tries to write to HKEY_CLASSES_ROOT.
on a side note: each time I run the RegOpenKeyEx the key value is different, is that ok?
2) with regasm
by using regasm.exe with the /regfile flag, and then replacing in the generated .reg file all HKEY_CLASSES_ROOT occurences with HKEY_CURRENT_USER/Software/Classes
this I think should work, but how do I unregister such assembly when I wan't to uninstall my Outlook AddIn?
as I see I can't make it in the same way as register because:
var openKeyresult = RegOpenKeyEx(HKEY_CURRENT_USER, "SOFTWARE\\Classes", 0, (int)RegistrySecurity.KEY_WOW64_64KEY, out key);
For what it's worth, I've written a set of C# utilities that register/unregister a .NET type (should be marked as ComVisible of course) in user's registry without requiring regasm, nor UAC prompts:
public static class ComUtilities
{
private const string ClsidRegistryKey = @"Software\Classes\CLSID";
public static void RegisterComObjectInCurrentUser(Type type)
{
if (type == null)
throw new ArgumentNullException("type");
RegisterComObjectInCurrentUser(type, new Uri(type.Assembly.Location).ToString());
}
// this functions registers a .NET COM object in HKEY_CURRENT_USER to avoid UAC prompts
public static void RegisterComObjectInCurrentUser(Type type, string assemblyPath)
{
if (type == null)
throw new ArgumentNullException("type");
using (RegistryKey key = EnsureSubKey(Registry.CurrentUser, Path.Combine(Path.Combine(ClsidRegistryKey, type.GUID.ToString("B")), "InprocServer32")))
{
key.SetValue(null, "mscoree.dll");
key.SetValue("Assembly", type.Assembly.FullName);
key.SetValue("Class", type.FullName);
if (assemblyPath != null)
{
key.SetValue("CodeBase", assemblyPath);
}
key.SetValue("RuntimeVersion", "v4.0.30319");
key.SetValue("ThreadingModel", "Both");
}
using (RegistryKey key = EnsureSubKey(Registry.CurrentUser, Path.Combine(ClsidRegistryKey, type.GUID.ToString("B"))))
{
// cf http://stackoverflow.com/questions/2070999/is-the-implemented-categories-key-needed-when-registering-a-managed-com-compon
using (RegistryKey cats = EnsureSubKey(key, @"Implemented Categories\{62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}"))
{
// do nothing special
}
var att = GetAttribute<ProgIdAttribute>(type);
if (att != null && !string.IsNullOrEmpty(att.Value))
{
using (RegistryKey progid = EnsureSubKey(key, @"ProgId"))
{
progid.SetValue(null, att.Value);
}
}
}
}
public static void UnregisterComObject(Type type)
{
using (RegistryKey key = Registry.CurrentUser.OpenSubKey(ClsidRegistryKey, true))
{
if (key == null)
return;
key.DeleteSubKeyTree(type.GUID.ToString("B"), false);
}
}
private static RegistryKey EnsureSubKey(RegistryKey root, string name)
{
RegistryKey key = root.OpenSubKey(name, true);
if (key != null)
return key;
string parentName = Path.GetDirectoryName(name);
if (string.IsNullOrEmpty(parentName))
return root.CreateSubKey(name);
using (RegistryKey parentKey = EnsureSubKey(root, parentName))
{
return parentKey.CreateSubKey(Path.GetFileName(name));
}
}
private static T GetAttribute<T>(ICustomAttributeProvider provider) where T : Attribute
{
object[] o = provider.GetCustomAttributes(typeof(T), true);
if (o == null || o.Length == 0)
return null;
return (T)o[0];
}
}
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