Event ID - 4377

Event Id4377
SourceMSDTC
DescriptionRunning "msdtc -remove" is no longer supported. To un-install MSDTC please contact product support. To configure this system to use a remote MSDTC as the coordinator please use the Component Services Explorer.
Event InformationCAUSE:
SQL Server 6.5 and service pack 5a has an add on program, DTC, which runs as part of the larger SQL Server install process. The version checking for this DTC install package was developed prior to the creation of Windows 2000, and the DTC package is consequently unaware of the Windows 2000 version.

So, both SQL Server 6.5 and the service pack 5a installation packages run the Dtcsetup.exe from the wrong place, which in this case is from either the SQL Server 6.5 CD or service pack 5a.

Following MS article will give more information about this event.
Reference LinksInstall of SQL Server 6.5 on Windows 2000 Modifies DTC Service

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