Reflection and attributes -- removal? modification? OR windows service in full trust?

I want to remove the security permissions from a class I don't have access to the source for. Is it possible to, via reflection, remove or modify the att开发者_运维知识库ribute?

[...PermissionSet(SecurityAction.InheritanceDemand, Name="FullTrust"), PermissionSet(SecurityAction.LinkDemand, Name="FullTrust")]

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after some consideration, it's occurred to me that maybe this approach to the problem is wrong. Is there a way to run a windows service in full trust so that its permissions would satisfy the above demands?

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Nope - .NET reflection is read-only. If you want to edit an existing assembly, look at Mono Cecil, although removing an attribute & replacing the assembly would remove any strong name signing on it

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You can always create a wrapper class and give the wrapper class more restricted permissions.