If the option Run bot runner session on control room is selected when running a bot, the Control Room opens a Remote Desktop Protocol (RDP) session to the devices.

To determine the number of simultaneously supported RDP sessions possible:

Divide the unallocated Control Room memory by the memory usage of an individual RDP client. Typically, this is 75 MB.

To support more than 35 simultaneous RDP sessions:

1. Manually increase the amount of memory available for the non-interactive desktop heap size. To do this, edit the Windows registry value at:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems

2. In the Windows registry, locate the SharedSection option. Change it to:

   SharedSection=A,B,C

   Table 1. SharedSection settings for RDP sessions

   Section	Description	Default Value (KB)	New Value (KB)
   A	Maximum size of the system-wide heap	1024	1024
   B	Size of each interactive desktop heap	20480	20480
   C	Size of non-interactive desktop heap	768	20480