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When you try to connect to a remote computer that is running Windows Server 2003 or Windows XP SP3 through Remote Desktop Protocol (RDP), the connection may not be created and you receive the following error message:
Event Type: Information
Event Source: Application Popup
Event Category: None
Event ID: 26
Date: <date>
Time: <time>
User: N/A
Computer: <computer>
Description:
Application popup: : \SystemRoot\System32\RDPDD.dll failed to load
To alleviate the issue, increase the size of the session image space by modifying this registry key.
Note: This change requires a reboot.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
"SessionImageSize"=dword:00000020
Where 00000020 is hex for 32
186645 Troubleshooting RDP Client connection problems
967680 Systems may encounter low memory conditions while connected to a Remote Desktop with newer graphics drivers
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