Article: Q237789
Product(s): Microsoft Windows NT
Version(s): WINDOWS:
Operating System(s):
Keyword(s): kbOSWin2000 kbDSupport
Last Modified: 24-OCT-2000
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The information in this article applies to:
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Professional
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SUMMARY
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Before Windows 2000, most in-process applications were placed in the registry
with a complete, hard-coded path. In Windows 2000, many of the earlier,
absolute, hard-coded paths have been replaced with the appropriate %environment%
variable.
MORE INFORMATION
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In-process applications are applications that are registered as handlers for a
particular file extension (for example, Filename.wri is started by Wordpad,
Filename.doc is started by Microsoft Word, and so on).
For instance, in the registry under HKLM/Software/Microsoft/Windows/Current
version/App paths, the entry for Wordpad, which was C:\Program Files\Windows
NT\Accessories\Wordpad.exe, has become %Program Files%\Windows
NT\Accessories\Wordpad.exe.
When an application calls the RegQueryValueEx function to retrieve a string, it
should check to see whether lpType==REG_EXPAND_SZ, which means that the
application should call the ExpandEnvironmentStrings function, just in case the
string returned really does need to be expanded.
These registry values have been REG_EXPAND_SZ for quite some time, but
applications expected that these strings were already expanded for them. There
are several applications that try to call WinExec with the parameter (%Program
Files%\Windows NT\Accessories\Wordpad.exe, and so on) with incorrect results.
Additional query words:
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Keywords : kbOSWin2000 kbDSupport
Technology : kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbWinAdvServSearch
Version : WINDOWS:
Issue type : kbinfo
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