ID Number: Q79065
1.00
WINDOWS
docerr
Summary:
The directory search order for DLLs is incorrectly recorded in both
the Microsoft QuickC for Windows (QC/Win) version 1.0 documentation
and the Microsoft Windows Software Development Kit (SDK) version 3.0
documentation. The references are:
"Microsoft QuickC for Windows: C for Windows" page 527
and
"Microsoft Windows Software Development Kit Guide to Programming"
pages 20-25
More Information:
The Windows programming documentation states that Windows searches for
Dynamic Link Libraries (DLLs) in certain directories. In particular,
it states that the order is:
1. Current directory
2. Windows Directory (where WIN.COM is located -- usually \WINDOWS)
3. Windows system directory (usually \WINDOWS\SYSTEM)
4. Other PATH environment directories
5. Other directories mapped on a network
Items 2 and 3 are reversed. Experimentation shows that the Windows
system directory is searched before the Windows directory. This means
that if two versions of a DLL exist, one in each directory, the DLL in
the Windows system directory will be used.
This is a problem because QC/Win installs COMMDLG.DLL in the Windows
directory. Old versions of COMMDLG.DLL may exist in the Windows system
directory. The old version will be used by QC/Win causing errors in
file access and creation.
Additional reference words: 1.00 3.00