Multiple installations and 3PPs

Adrian Cox
Fri Jan 14 17:50:00 GMT 2005

Multiple installations of Cygwin clash, both over the registry name used
for the mount table and the name of the shared memory region. This makes
it difficult to have several versions for testing purposes, and causes
problems with software from 3PPs.

Has anybody considered using PSAPI to find the full path to cygwin1.dll,
and using a hash of this path as the name of the shared memory region
and of the registry key? (I couldn't find anything with Google, but
cygwin-developers isn't indexed). Win98 would have to fall back to the
old name, but this could allow multiple installations to remain
independent of each other on NT based windows.

Adrian Cox <>

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