Hello,
When you have an issue with registering a DLL like msdtcuiu.DLL, which is associated with the Microsoft Distributed Transaction Coordinator (MSDTC) user interface module, you can follow these steps to troubleshoot:
Ensure that the msdtcuiu.DLL is the correct version for your Windows build. Using a DLL from a different version of Windows could cause issues.
Make sure your system is fully updated, as some DLL files may rely on other system components that could be updated or fixed in a Windows Update.
Attempt to re-register the DLL after ensuring everything else is in order using the regsvr32 command in an elevated command prompt:
regsvr32 msdtcuiu.DLL
This command should be run in the directory where msdtcuiu.DLL is located, or you should provide the full path to the DLL.
Since the DLL is related to MSDTC, you can try resetting MSDTC. Open an elevated command prompt and run the following commands:
msdtc -uninstall
msdtc -install
Open the Event Viewer and look for any related error messages in the Application or System logs that could provide more details about the failure.
Best Regards,
Hania Lian
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