hi. i got this from TechNet. you may want to check on this. hope this helps
PSS ID Number: Q173741
Article last modified on 05-03-2000
WINDOWS:1.0; :1.0,1.0b
WINDOWS
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The information in this article applies to:
- Microsoft Visual InterDev, version 1.0
- Microsoft Active Server Pages, versions 1.0, 1.0b
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SYMPTOMS
========
The following error occurs randomly when submitting a HTML form:
error 'ASP 0115'
Unexpected error
/<web name>/<asp file name>.asp
A trappable error occurred in an external object. The script cannot continue
running.
Again, the error occurs randomly.
CAUSE
=====
The following conditions cause the error to occur:
1. The elements of the submitting form are not named. For example, <input
type="Text"> instead of <input type="Text" name="textinput">.
2. The form must have a "Input" or "Select" element. In other words, the form
must pass values associated with the "Input" or "Select" tags to the server.
3. You have code that accesses the Forms Collection from a second Active Server
Pages (ASP) page. For example, the "Action" parameter of the "Form" tag
points to an .asp file other than itself. And the code accesses the forms
collection via 'Request.Forms("var"

'. NOTE: at this time we have been unable
to reproduce the error when the "Action" parameter points to itself -- the
.asp file in which the form is defined.
4. You have code that accesses memory; as in, 'Session("variable"

=value'. This
condition is very touchy, sometimes just changing the name of the variable
will remove the symptoms.
RESOLUTION
==========
Name each element--including the form itself--in the form.
-or-
Change the name of the variable, see condition 4 in the CAUSE section above.
STATUS
======
Microsoft is researching this problem and will post new information here in the
Microsoft Knowledge Base as it becomes available.
MORE INFORMATION
================
Steps to Reproduce Behavior
---------------------------
1. Create a Virtual Root (or project in VID).
2. Add the two files below to the project.
3. Preview the "Testvb.asp" in a browser.
4. Repeatedly (anywhere from 1-20 times) click OK until the error occurs.
=======frmsubmit.asp================
<%@ LANGUAGE="VBSCRIPT" %>
<HTML>
<BODY>
<form action="calendarcase.asp" method="POST">
<input type="text" name="Month2" size="1">
<input type="submit" value="OK" >
</form>
</BODY>
</HTML>
=========end frmsubmit.asp============
========frmaction.asp==============
<%@ LANGUAGE="VBSCRIPT" %>
<%
'Access the forms collection
mo=Request.Form("Month"
'The below code -- setting the session variable -- is also necessary.
I ' suspect setting the session variable below just accesses the
'corrupted forms collection memory and causes the error.
Session("SelectedMonthNumber"

= "1"
response.redirect "testvb.asp"
%>
=========end frmaction.asp======================
REFERENCES
==========
For the latest Knowledge Base articles and other support information on Visual
InterDev and Active Server Pages, see the following page on the Microsoft
Technical Support site:
Additional query words:
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Keywords : kbcode kbASP kbVBScript kbVisID kbGrpASP kbDSupport
Version : WINDOWS:1.0; :1.0,1.0b
Platform : WINDOWS
Issue type : kbprb
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Copyright Microsoft Corporation 2000.