by dburg on Wed Dec 10, 2003 4:09 pm
Don't remove any of these drivers - Windows Media Player needs them to be able to burn CDs.
It is not a driver conflict, but a driver installer conflict (I think). The (technically detailed) problem is that both InCD 4 and Media Player uses (upper) filter drivers of the cdrom class. Filter drivers are registered in a multistring value (REG_MULTI_SZ) named "UpperFilters" (and "LowerFilters" but not used in this precise case) in the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
The installer of WMP7 (I tested with version 7 - from the description of ncw, the problem seems the same with 9) set the value of the entry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}\UpperFilters
to REG_SZ:Cdralw2k
There are 2 problems:
-> it shall not be a REG_SZ (string) but a REG_MULTI_SZ (multistring)
-> an installer shall not overwritte previous value(s), but add its driver name to the multi-string.
You can either repair this manually by changing the value to a multistring and put incdpass.sys and Cdralw2k (careful, it's unicode and has a double \0 terminator - in hex that will make 49 00 6E 00 43 00 44 00 50 00 61 00 73 00 73 00 00 00 43 00 64 00 72 00 61 00 6C 00 77 00 32 00 6B 00 00 00 00 00), or de-install InCD and re-install InCD (InCD installer does not damage the filter driver key).
Ahead Software is currently preparing a tool to repair this key/value without touching manually the registry, neither have to de-install re-install.
Notice that if additional driver than InCD was registered in this key they will also have been removed and only re-installing the matching software will restore them.
David Burg
Software Development, InCD Project Manager
Nero AG - Im Stoeckmaedle 18
76307 Karlsbad - Germany
fax: +49 (0)7248 928 299
http://www.nero.com