我用这段代码实现了远程桌面和互斥。MutexSecurity是访问其他RDP会话上已打开的互斥体所必需的。

var mSec = new System.Security.AccessControl.MutexSecurity();

        // Add a rule that grants the current user the 
        // right to enter or release the mutex.
        System.Security.Principal.SecurityIdentifier everyone = new System.Security.Principal.SecurityIdentifier(System.Security.Principal.WellKnownSidType.WorldSid, null);

        var rule = new System.Security.AccessControl.MutexAccessRule(everyone,
            System.Security.AccessControl.MutexRights.Synchronize | System.Security.AccessControl.MutexRights.Modify,
            System.Security.AccessControl.AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        // Add a rule that denies the current user the 
        // right to change permissions on the mutex.
        rule = new System.Security.AccessControl.MutexAccessRule(everyone,
            System.Security.AccessControl.MutexRights.ChangePermissions,
            System.Security.AccessControl.AccessControlType.Deny);
        mSec.AddAccessRule(rule);

        using (var mutex = new System.Threading.Mutex(false, $"Global\\AnDietzeMutex", out bool createdNew, mSec)); {
        }