You use Microsoft Visual Studio 2005, and you create an ActiveX control in an application. You call the AtlIPersistPropertyBag_Load function from the ATLCOM.h file. When you run the control, an "Access Violation" exception may occur. Additionally, the application crashes.
Symptoms
This problem occurs because the CComVariant::Clear function does not clear some members in the CComVariant object. When the destructor is called, the SysFreeString function is called if a basic string (BSTR) exists in the out-of-date members. Then, an invalid address is accessed, and this causes the access violation.
Note This behavior occurs in the AtlIPersistPropertyBag_Load function.
Cause
Hotfix information
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
Prerequisites
To apply this hotfix, you must have Microsoft Visual Studio 2005 Service Pack 1 (SP1) installed.
For more information about how to obtain the service pack, click the following article number to view the article in the Microsoft Knowledge Base:
929697 How to obtain the latest Visual Studio 2005 service pack
Restart information
You may have to restart the computer after you install this hotfix if the affected files are being used. We recommend that you exit any instances of Visual Studio before you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
File information
This hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Atl80.dll | 8.0.50727.6203 | 119,984 | 27-Jun-2011 | 04:07 | x86 |
| Atl80.dll | 8.0.50727.6203 | 82,096 | 27-Jun-2011 | 04:08 | x86 |
| Atl80.dll | 8.0.50727.6203 | 81,072 | 27-Jun-2011 | 04:08 | x86 |
| Atl80.dll | 8.0.50727.6203 | 117,936 | 27-Jun-2011 | 04:08 | x86 |
| Atl80.dll | 8.0.50727.6203 | 119,984 | 27-Jun-2011 | 04:08 | x86 |
| Atl80.dll | 8.0.50727.6203 | 117,936 | 27-Jun-2011 | 04:08 | x86 |
| Atl80.dll | 8.0.50727.6203 | 91,824 | 27-Jun-2011 | 04:08 | x86 |
| Atl80.dll | 8.0.50727.6203 | 111,792 | 27-Jun-2011 | 04:08 | x86 |
| atl.lib | 12,154 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,154 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,154 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,154 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,154 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,154 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,380 | 26-Jun-2011 | 22:08 | x86 | |
| atl.lib | 12,380 | 26-Jun-2011 | 22:08 | x86 | |
| atlcom.h | 175,950 | 26-Jun-2011 | 22:08 | ||
| atlcomcli.h | 68,740 | 26-Jun-2011 | 22:08 | ||
| atlosapis.lib | 124,748 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 125,026 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 120,830 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 121,652 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 124,428 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 122,192 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 113,022 | 26-Jun-2011 | 22:06 | x86 | |
| atlosapis.lib | 131,122 | 26-Jun-2011 | 22:06 | x86 | |
| atls.lib | 814,070 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 817,108 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 1,133,736 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 1,133,870 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 1,137,342 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 1,137,476 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 1,267,068 | 26-Jun-2011 | 22:08 | x86 | |
| atls.lib | 1,110,478 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,275,334 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,293,630 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,709,616 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,708,950 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,718,824 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,717,314 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,499,144 | 26-Jun-2011 | 22:08 | x86 | |
| atlsd.lib | 1,288,248 | 26-Jun-2011 | 22:08 | x86 |
Resolution
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Status
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates