Environment

Product: Connect for ADO.NET
Version: 4.1
OS: Windows x86 and x64
Database: All supported databases
Application: Provider

Question/Problem  Description

 User gets "The DDTek.OracleHelper assembly with assembly version number of 4.1.0.0 failed to load" while using any of the following feature with 4.1 release of cfADO.NET providers.
1. Distributed Transactions (XA)
2. Kerberos
3. NTLM Authentication

Clarifying Information

Error Message       

 Exception: The DDTek.OracleHelper assembly with assembly version number of 4.1.0.0 failed to load

Cause                      

 The new Helper  dlls for 4.1 release are compiled with Visual Studio 2012 compilers which need some additional component to load properly.

Resolution               

Pleas install Visual C++ Redistributable for Visual Studio 2012 Update 4 to resolve this error.
Please note that, User will need to install 32bit redistributable package on 32bit machines while on 64bit machines User will need to install both 32bit and 64bit redistributable packages. As 64bit machine can host both 32bit and 64bit applications.
User can download the Visual C++ Redistributable for Visual Studio 2012 Update 4 from
http://www.microsoft.com/en-us/download/details.aspx?id=30679#