Summary:
 The Error: There was a problem initializing the .Net object(s). Please contact Replicon support while installing QuickBooks Integration manager.

Cause:
This error mainly occurs when the .Net framework is not compatible with the QuickBooks Integration manager.

Resolution:
Uninstall .Net framework which is higher than the compatible version of the QuickBooks Integration manager.

Note: 
This error was noticed while installing QuickBooks Integration manager version 5.4.2.16 on a Windows Server 2008 R2 which has .Net 4.0 by default. Uninstalling .Net framework 4.0 and installing the .Net version 3.5 solved the issue.