Is there a way to modify a process DACL in C#

public class ProcessSecurity : NativeObjectSecurity
{
    public ProcessSecurity(SafeHandle processHandle)
        : base(false, ResourceType.KernelObject, processHandle, AccessControlSections.Access)
    {

    }

    public void AddAccessRule(ProcessAccessRule rule)
    {
        base.AddAccessRule(rule);
    }

    // this is not a full impl- it only supports writing DACL changes
    public void SaveChanges(SafeHandle processHandle)
    {
        Persist(processHandle, AccessControlSections.Access);
    }

    public override Type AccessRightType
    {
        get { return typeof(ProcessAccessRights); }
    }

    public override AccessRule AccessRuleFactory(System.Security.Principal.IdentityReference identityReference, int accessMask, bool isInherited, InheritanceFlags inheritanceFlags, PropagationFlags propagationFlags, AccessControlType type)
    {
        return new ProcessAccessRule(identityReference, (ProcessAccessRights)accessMask, isInherited, inheritanceFlags, propagationFlags, type);
    }

    public override Type AccessRuleType
    {
        get { return typeof(ProcessAccessRule); }
    }

    public override AuditRule AuditRuleFactory(System.Security.Principal.IdentityReference identityReference, int accessMask, bool isInherited, InheritanceFlags inheritanceFlags, PropagationFlags propagationFlags, AuditFlags flags)
    {
        throw new NotImplementedException();
    }

    public override Type AuditRuleType
    {
        get { throw new NotImplementedException(); }
    }
}

public class ProcessAccessRule : AccessRule
{
    public ProcessAccessRule(IdentityReference identityReference, ProcessAccessRights accessMask, bool isInherited, InheritanceFlags inheritanceFlags, PropagationFlags propagationFlags, AccessControlType type)
        : base(identityReference, (int)accessMask, isInherited, inheritanceFlags, propagationFlags, type)
    {
    }

    public ProcessAccessRights ProcessAccessRights { get { return (ProcessAccessRights)AccessMask; } }
}

[Flags]
public enum ProcessAccessRights
{
    STANDARD_RIGHTS_REQUIRED = (0x000F0000),
    DELETE = (0x00010000), // Required to delete the object. 
    READ_CONTROL = (0x00020000), // Required to read information in the security descriptor for the object, not including the information in the SACL. To read or write the SACL, you must request the ACCESS_SYSTEM_SECURITY access right. For more information, see SACL Access Right. 
    WRITE_DAC = (0x00040000), // Required to modify the DACL in the security descriptor for the object. 
    WRITE_OWNER = (0x00080000), // Required to change the owner in the security descriptor for the object. 

    PROCESS_ALL_ACCESS = STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0xFFF, //All possible access rights for a process object.
    PROCESS_CREATE_PROCESS = (0x0080), // Required to create a process. 
    PROCESS_CREATE_THREAD = (0x0002), // Required to create a thread. 
    PROCESS_DUP_HANDLE = (0x0040), // Required to duplicate a handle using DuplicateHandle. 
    PROCESS_QUERY_INFORMATION = (0x0400), // Required to retrieve certain information about a process, such as its token, exit code, and priority class (see OpenProcessToken, GetExitCodeProcess, GetPriorityClass, and IsProcessInJob). 
    PROCESS_QUERY_LIMITED_INFORMATION = (0x1000),
    PROCESS_SET_INFORMATION = (0x0200), // Required to set certain information about a process, such as its priority class (see SetPriorityClass). 
    PROCESS_SET_QUOTA = (0x0100), // Required to set memory limits using SetProcessWorkingSetSize. 
    PROCESS_SUSPEND_RESUME = (0x0800), // Required to suspend or resume a process. 
    PROCESS_TERMINATE = (0x0001), // Required to terminate a process using TerminateProcess. 
    PROCESS_VM_OPERATION = (0x0008), // Required to perform an operation on the address space of a process (see VirtualProtectEx and WriteProcessMemory). 
    PROCESS_VM_READ = (0x0010), // Required to read memory in a process using ReadProcessMemory. 
    PROCESS_VM_WRITE = (0x0020), // Required to write to memory in a process using WriteProcessMemory. 
    SYNCHRONIZE = (0x00100000), // Required to wait for the process to terminate using the wait functions. 
}
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