Wire compression not working without MSVC 2010 runtime installation (FB4 Beta1)
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Key: CORE-6019
URL: http://tracker.firebirdsql.org/browse/CORE-6019
Project: Firebird Core
Issue Type: Bug
Affects Versions: 4.0 Beta 1
Environment: Clean, older Windows 7 and 10 versions, without updates
Reporter: michalk1
Priority: Minor
Wire compression (WireCompression = true in firebird.conf at client side ) is
not working on some older Windows hosts (Win10 1803, Win7). A workaround is to
download and install MSVC++ 2010 redistributable package. FB 4 installer
contains VC2017 runtime, but wire compression (zlib1.dll ?) is probably still
tied to the older version.
Remote TCP connections fail instantly:
isql -user sysdba -password masterkey testhost:employee
Statement failed, SQLSTATE = 08006
Error reading data from the connection.
Local TCP connect succeeds, but it's wire compression is not active, probably
because compression fails sooner, already at the client side.
Btw., I'm not sure whether Win XP are still supported, but my attempts to test
FB4 Beta1 on them failed. First problem was in installation, which in it's
final part displayed several error messages "This application has failed to
start because api-ms-win-crt-runtime-l1-1-0.dll was not found.". But even when
I fixed it by installation of another MSVC runtime (2015) and the installation
completed, I was unable to connect from isql to employee database, FB log file
says "Could not find acceptable ICU library".
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