Office: certain file formats that are blocked after you install Office 2003 Service Pack 3

De volgende informatie staat er op de Microsoft site:

After you install Office 2003 SP3, some Microsoft Office Excel 2003, Microsoft Office PowerPoint 2003, Microsoft Office Word 2003, and Corel Draw (.cdr) file formats are blocked. By default, these file formats are blocked because they are less secure. They may pose a risk to you.
The following table contains the DWORD names and the corresponding file formats that are blocked by using the FileOpenBlock subkey.

DWORD name
File formats that are blocked

LotusandQuattroFiles
.wk1, .wk4, .wj3, wk1 FMT, .wks, .wk3, wk3 FM3, .wj2, .wq1, .fm3, .wj1

DifandSylkFiles
.dif, .slk

FilesBeforePowerPoint97
This policy will prevent the saving of files that are older than PowerPoint 97 and that have file formats such as .ppt, .pot, .pps, and .ppa.

FilesBeforeVersion
All Word files that have an nFib value that is less than the minimum nFib value as set by an administrator

The following table contains the DWORD names and the corresponding file formats that are blocked by using the FileSaveBlock subkey.

DWORD name
File formats that are blocked

Converters
This policy prevents PowerPoint presentations that are in a format that is older than the Microsoft PowerPoint 97 file format from being opened. These presentations are saved by using file formats such as .ppt, .pot, .pps, and .ppa.

Meer info vind je hier: KB938810