We have published a technote (T10-2022) for the DCOM Security patch ( KB5004442) that will allow the LES function as before.  In addition, additional settings need to be applied on the LES client server in some customer’s environment. They may encounter the following error message when launching LES application.

Error 1: “Velquest Diagnostics not properly registered”.

Clicking ‘OK’ showed the following second error.

“91 Object variable or With block variable not set in frmSplash::Load Line:0”

Resolution:

On the LES Client Server:

1. Run the command ‘mmc -32’
2. From File menu, select ‘Add/Remove Snap-ins’.
3. Add ‘Component Services’ and click ‘OK’.
4. Expand ‘Component Services’ to reach ‘My Computer’.
5. Right-click on ‘My Computer’ and select ‘ Properties’.
6. Click ‘COM Security’ tab.
7. On the ‘Access Permissions’ section, select ‘Edit Default’ and add the global group (eg EPMC_USERS) with FULL control.
8. On the ‘Launch and Activation Permissions’ section, select ‘Edit Default’ and add the global group (eg EPMC_USERS) with FULL control.