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Article ID: 239879 - Last Review: February 28, 2007 - Revision: 3.2
CoCreateInstance Fails on COM+ Object with Object Construction Enabled and No Constructor String Present
This article was previously published under Q239879
Create a component that implements
IObjectConstruct::Construct. Configure the component as a COM+ application and enable the object construction property, but do not provide a constructor string.
Attempting to instantiate the COM+ object results in the following error:
Error 8004e025
Automation Error
COM+ Activation function failed because an initialization function failed.
The workaround for this problem is to enter a dummy string or just spaces in the
Constructor String field.
Steps to Reproduce Behavior:
- Create a component that derives from IObjectConstruct and implements IObjectConstruct::Construct but does not use a constructor string.
- Configure this component in a COM+ Server Application such that object construction is enabled in Component Services but the constructor string is left blank.
To do this:
- On the Start menu, select Programs, and then select Administrative Tools to launch Component Services.
- Create a new COM+ Server Application under My Computer\COM+ Applications.
- Install your component in this Application.
- Right-click on this configured component and select Properties. Click the Activation tab.
- Select the Enable Object Construction button and leave the Constructor String blank.
- Try to create this component through a client application.
An error message is displayed saying:
Error 8004e025
Automation Error
COM+ Activation function failed because an initialization function failed.
If you just enter a dummy string or spaces for the constructor string, an instance of the object can be created.
APPLIES TO
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Professional Edition
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