This article was previously published under Q270136
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This article describes how to modify a Microsoft ActiveSync installation to automatically connect devices as "Guest" and to avoid creating a new partnership in versions 3.0 through 3.7 of ActiveSync.
Note In ActiveSync 4.0 and later versions, this change suppresses the partnership dialog only. This change does not configure the ActiveSync desktop passthrough connection.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
Sometimes, you may want to establish ActiveSync connections between a Microsoft Windows CE-based device and a desktop computer that is running ActiveSync without creating a new partnership. You can configure ActiveSync to automatically connect devices as "Guest" by using the following registry key.
To update the registry, follow these steps:
Create a text file, and then save the file as a .reg" file.
Enter the following lines of text to the file exactly as they appear. Include a blank line at the bottom of the file.
REGEDIT4[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows CE Services]"GuestOnly"=dword:00000001
Save the file, and then double-click the file to merge the entries into the registry.