When you try to run a Visual Studio .NET-based MFC application on a computer that is running Windows NT 4.0 Service Pack 5 or earlier, you receive the following error message:
The dynamic link library OLEACC.dll could not be found in the specified path
The MFC dynamic-link libraries (DLLs) that are included with Visual Studio .NET require that the Oleacc.dll file be installed on the target computer.
A supported hotfix 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 hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Visual Studio .NET service pack that contains this hotfix.
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: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 typical 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 Version Size File name
19-Jun-2002 7.0.9510.0 974,848 bytes MFC70.dll
19-Jun-2002 7.0.9510.0 964,608 bytes MFC70u.dll
19-Jun-2002 7.0.9510.0 1,933,312 bytes MFC70d.dll
19-Jun-2002 7.0.9510.0 1,927,680 bytes MFC70ud.dll
This problem does not occur with Windows NT 4.0 Service Pack 6a or later because Service Pack 6a installs the Oleacc.dll file. Microsoft highly recommends that you install Windows NT 4.0 Service Pack 6a to get the latest updates for Windows NT 4.0.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.