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Aspose fails PEVerify / Unsafe operations

We found a serious problem with our app that uses aspose – it doesn’t work when run off of a network drive! The call to


fails with a security error:

"Operation could destabilize the runtime"

We ran the .DLL through PEVerify and it failed. We could make our app work by deploying a new code group that changed access when running on the network, but it would be much better if the aspose.dll was marked as safe. Is there any way that it could be modified to pass PEVerify?


Aspose.Excel use some unsafe code. So it’s not verifiable by the common language runtime.

We removed all unsafe code and it can pass peverfiy now. Please download and try v3.4.2.