COMTI Data Conversion Does Not Succeed When There Are Four or More Nested UDTs

When an application calls a COM Transaction Integrator (COMTI) method that returns a user-defined type structure (UDT) that is four or more nested UDTs deep, and the COMTI method uses OCCURS Depending On to return a variable number of UDTs, COMTI may return the following error message to the calling application:


An event 102 is logged in the Application event log. Other conversion errors may occur, depending on the structure of the UDTs.

COMTI incorrectly calculates the size of the OCCURS Depending On arrays when the UDT nesting is too complex. This incorrect calculation leads to data conversion failures later in the processing. Data conversion fails because COMTI is looking at the wrong area of the host data for conversion, and the data no longer matches what is defined in the COMTI type library.

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Host Integration Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Hotfix information

The global version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

This problem was corrected in Microsoft Host Integration Server 2000 Service Pack 2.