Symptoms: A Trimble device or similar rugged handheld device that was working fine with Windows 10 may suddenly stop working and no longer be able to connect to the computer. This is a known issue associated with the Windows 10 version 1703 (Creators Update) Build 15063. On an attempt to sync the device the software will state that its unable to connect or just fail.

The credit here goes to Junipersys.com for identifying the fix for this frustrating error, the original can be found here: http://www.junipersys.com/Juniper-Systems-Rugged-Handheld-Computers/support/Knowledge-Base/Support-Knowledge-Base-Topics/Desktop-Connection-ActiveSync-or-Windows-Mobile-Device-Center/WMDC-in-Windows-10

The solution is a multi-step process:

Trimble Planning 2.90 can be downloaded from our website for free. The software lies within Education Tools, more precisely Science Tools. This free PC software was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10 and can function on 32-bit systems. Trimble Access field software features the power, functionality, and modularity that surveyors need today. It is designed to support everyday work such as topographic surveys, staking, control, and more through a familiar, easy-to-use interface that will ensure your instant productivity—and you’ll experience less of the typical downtime associated with learning new software.

1. Ensure that .NET Framework 3.5 is fully installed under Control Panel > Programs > “Turn Windows features on or off”. Sometimes before being successful at installing WMDC, you must first manually enable the required .NET Framework 3.5 under “Turn Windows features on or off” and/or by using the previous dotNetFx35setup.exe installer from Microsoft. You may need to check the http and non-http additions to complete the install.
2. Run the 64-bit drvupdate-amd64.exe or 32-bit drvupdate-x86.exe installer as an Admin and in “Compatibility Mode” for Windows Vista if WMDC and the required drivers do not successfully install automatically through the Windows Update service when you connect USB. You can access compatibility mode by right clicking on the file, go to properties, and click the compatibility tab, “Run as Windows Vista”. Also make sure that you run it as Administrator. If you do not feel comfortable downloading the files from Junipersys.com you can obtain the files from Microsoft’s website by searching Windows WMDC.
3. After install and once “Windows Mobile Device Center” appears in the list under the Start menu on the desktop PC, similar to as is automatically applied by our “WMDC-Helper.exe” utility referenced above, you WILL need to run command-prompt as an administrator to apply the following registry commands, and then perform a Restart.
   1. REG ADD HKLMSYSTEMCurrentControlSetServicesRapiMgr /v SvcHostSplitDisable /t REG_DWORD /d 1 /f
   2. REG ADD HKLMSYSTEMCurrentControlSetServicesWcesComm /v SvcHostSplitDisable /t REG_DWORD /d 1 /f
4. Reboot the machine and you should be able to connect your device and sync with the computer again!

You are running: Windows XP

DLL file found in our DLL database.

The update date of the dll database: 13 Feb 2021

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Since you decided to visit this page, chances are you’re either looking for layout_model.dll file, or a way to fix the “layout_model.dll is missing” error. Look through the information below, which explains how to resolve your issue. On this page, you can download the layout_model.dll file as well.

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