Dcomcnfg "edit Limits" Buttons Are Greyed Out.

[dvacasp]

Hello everyone,

I´m trying to establish OPC communications from a machine with WS 2008 and I´m having problems configuring DCOM through DCOMCNFG.

I want to alter the permissions for DCOM, but when I open:

Component Services ---> MY Computer --> Properties --> Com Security tab.

the buttons "Edit Limits" are grayed out, and I can´t find a way to give them back to normal life.

I have Domain admin key with admin rights on the local server.

I have tried to delete all users in the security policy (Local Security Settings-> Security Options -> DCOM: Machine Launch Restrictions) but that didn´t work. I tried the same with: "DCOM: Machine Acces Restrictions" and it also didn´t resolve the problem.

Please any need help appreciated, because I´m really stuck at this.

Thank you,,

David

 

[dvacasp]

Hello, I´ve just found the solution by myself.

Using regedit and deleting the value of the keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\DCOM\MachineAccessRestriction
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\DCOM\MachineLaunchRestriction

makes that the "Edit limits" buttons in DCOMCNFG become active again.
It must be made by hand because it´s an impossible thing to achieve using the DCOMCNFG dialog, I don´t know why.
And it seems that everytime a change is made in the Local Security Policy for DCOM those buttons become grayed out again,
even if you are logged as an Administrator.
But anyway it works that way.

Thank you and good bye.