Runtime Error 1205; CedarBank VBClient in DCOM Environment (191868)
The information in this article applies to:
- Microsoft COM Transaction Integrator for CICS and IMS 1.0, when used with:
- Microsoft Host Integration Server 2000
This article was previously published under Q191868 SYMPTOMS
The error occurs when executing the getaccts method of the COM Transaction
Integrator for CICS and IMS (COMTI) CedarBank tutorial in a DCOM
environment. This error involves the Visual Basic client components of the
tutorial (VBClient and VBClientExplicitSecurity) in an identical manner.
CedarBank has two methods, cedrbank and getaccts. Both methods execute
properly when CedarBank.exe is operated on the same computer on which COMTI
and Transaction Server (MTS) operate. However, when the MTS component
package is exported to another computer and CedarBank is executed on that
other computer, one method, cedrbank, executes properly, but COMTI returns
the following runtime error when the getaccts method is attempted:
(1205) COM Transaction Integrator detected an error on parameter 2 prior
to the remote operation. COM Transaction Integrator could not convert
from variant type (0x0009) to (0x0008) (0x80020005).
This message can also be seen in the application event log of the computer
running COMTI.
CAUSE
There is an error in the source code for the CedarBank Visual Basic client
programs. It doesn't make any difference when the client code, COMTI
runtime, and MTS all coexist on the same computer. When the client is
exported to another computer, however, parameter data must be marshaled
between the two by DCOM, and data of one of the getaccts parameters, the
PIN, is not marshaled correctly, producing the runtime error.
WORKAROUND
To resolve this problem, install the SNA Server service pack described in
the STATUS section below, or perform the following workaround:
The following statement in the source for the VBClient and
VBClientExplicitSecurity must be changed and the program recompiled.
In the Private Sub GetAccounts_Click() subroutine, change:
Set objAccounts = objBank.getaccts(txtName.Text, txtPIN)
to:
Set objAccounts = objBank.getaccts(txtName.Text, txtPIN.Text)
STATUS
Microsoft has confirmed this to be a problem in Microsoft COM Transaction
Integrator for CICS and IMS version 1.0 included with SNA Server version
4.0.
This problem has been corrected in the latest U.S. service pack for SNA
Server version 4.0. For information on obtaining the service pack, query on
the following word in the Microsoft Knowledge Base (without the spaces):
| Modification Type: | Major | Last Reviewed: | 2/20/2004 |
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| Keywords: | kbbug kbfix KB191868 |
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