DOCUMENT:Q326345  24-JUL-2002  [vbwin]
TITLE   :"Invalid Procedure Call" Err When You Assign User-Defined Type
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER::6.0
OPER/SYS:
KEYWORDS:

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The information in this article applies to:

 - Microsoft Visual Basic Enterprise Edition for Windows, version 6.0 
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SYMPTOMS
========

When you assign a user-defined type to a Variant in a multithreaded environment
(for example, in Microsoft COM+ or in Microsoft Internet Information Server
[IIS]), you may receive an "Invalid Procedure Call" error message or an access
violation (0xC0000005) in MSVBVM60.dll.

RESOLUTION
==========

A supported fix is now available from Microsoft, but it is only intended to
correct the problem that is described in this article. Only apply it to systems
that are experiencing this specific problem. This fix may receive additional
testing. Therefore, if you are not severely affected by this problem, Microsoft
recommends that you wait for the next Microsoft Visual Studio 6.0 service pack
that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services
to obtain the fix. For a complete list of Microsoft Product Support Services
phone numbers and information about support costs, visit the following Microsoft
Web site:

   http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls
may be canceled if a Microsoft Support Professional determines that a specific
update will resolve your problem. The usual support costs will apply to
additional support questions and issues that do not qualify for the specific
update in question.

The English version of this fix has the file attributes (or later) 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.

   Date         Time    Version    Size       File Name     Platform
   -----------------------------------------------------------------
   09-Jul-2002  07:21   6.0.96.33  1,392,640  Msvbvm60.dll  x86




STATUS
======

Microsoft has confirmed that this is a problem in the Microsoft products that
are listed at the beginning of this article.


Additional query words: AV UDT

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Keywords          :  
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVB600
Version           : :6.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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