Our site are on NT 4 machine SP6a running on IIS 4 using VB COM and
connects to MS SQL 2K on other machine.

We started getting folowing error

Event ID: 4104
Source : Transaction Server
Category: Context Wrapper
Description: An object call caused an exception.
(IID: {51372AEF-CAE7-11CF-BE81-00AA00A2FA25}) (Method: 3) (Microsoft
Transaction Server Internals Information: File:
i:\viper\src\runtime\mtxex\activity.cpp, Line: 889) (Exception:
(Address: 0x77f64ed3)

This MTS error stops IIS.

Some of the sites recoomended to re-install SP6a again or install SP7
for NT4.
We can not do that at the moment.

Any help?