Windows runs PC/SC Services that may conflict with the normal operation of the Windows AVT with PC/SC Readers

The issues may be solved by adding Registry Keys and by executing a couple of commands using the Windows ‘Service Configuration Tool’ sc.exe

Registry Entries

Add the following Registry Keys to prevent Plug-And-Play PC/SC Services from Running:

Under HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\ScPnP:
- Add the DWORD Key “EnableScPnP” with the value 00000000

Under HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows\ScPnP:
- Add the DWORD Key “EnableScPnP” with the value 00000000

The following file ScPnp.reg contains these 2 Key Entries and can be imported using RegEdit.exe:

Open

Prevent Certificate Propagation

Certificate Propagation may prevent proper interaction with Card Probes used with L2 Certification Tools

To prevent the issue, run the following Commands from an Administrator Command Prompt:

> sc.exe stop CertPropSvc

> sc.exe config CertPropSvc start=Disabled