我有一个.NET程序集，应该为32 b和64 b COM互操作注册。我们的安装脚本成功地注册了这个程序集，一切都按预期工作。
我们希望我们的卸载脚本完全删除安装脚本中的注册，但我无法做到这一点。一些注册表项总是保留。
我设置了一个可重现的测试用例：

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" /codebase /tlb
C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" /codebase /tlb

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" /u /tlb
C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" /u /tlb

如您所见，这为32 b和64 b注册了库（使用了Framework和Framework64目录），并导出和注册了类型库（/tlb参数）。
注销库（.dll和.tlb文件）也是如此。
完整输出为

C:\>C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" /codebase /tlb
Microsoft .NET Framework Assembly Registration Utility version 4.8.4084.0
for Microsoft .NET Framework version 4.8.4084.0
Copyright (C) Microsoft Corporation.  All rights reserved.

Types registered successfully
Assembly exported to 'C:\Path\To\MyLibrary.tlb', and the type library was registered successfully

C:\>C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" 
/codebase /tlb
Microsoft .NET Framework Assembly Registration Utility version 4.8.4084.0
for Microsoft .NET Framework version 4.8.4084.0
Copyright (C) Microsoft Corporation.  All rights reserved.

Types registered successfully
Assembly exported to 'C:\Path\To\MyLibrary.tlb', and the type library was registered successfully

C:\>C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" /u /tlb
Microsoft .NET Framework Assembly Registration Utility version 4.8.4084.0
for Microsoft .NET Framework version 4.8.4084.0
Copyright (C) Microsoft Corporation.  All rights reserved.

Types un-registered successfully
Type library 'C:\Path\To\MyLibrary.tlb' un-registered successfully

C:\>C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\regasm.exe "C:\Path\To\MyLibrary.dll" 
/u /tlb
Microsoft .NET Framework Assembly Registration Utility version 4.8.4084.0
for Microsoft .NET Framework version 4.8.4084.0
Copyright (C) Microsoft Corporation.  All rights reserved.

Types un-registered successfully
Type library 'C:\Path\To\MyLibrary.tlb' un-registered successfully
PS C:\>

请注意，在这两种情况下，输出都提到类型库已成功注销。
但是，如果我查看注册表，我会看到HKEY_CLASSES_ROOT\TypeLib\{E9E332B2-... snip ... -E6B627A4642E}\1.0\0\win32处的类型库残余
如果我注解掉32 b xor 64 b registration/unregistration语句，那么注册表将回到原始状态，没有任何残余，只有当我同时注册/取消注册32 b和64 b时，才有残余，尽管输出声称已经取消注册了所有内容。
我怀疑这是一个regasm bug，但我会等待社区的反馈。