For work with diferent version of IB server is usualy needed
diferent version of clients library (gds32.dll under windows).
For easier administration and simlyfiing development
I suggest add version as the part of client library
like as
for IB6.0 -> gds3260.dll
for IB6.3 -> gds3263.dll
for IB8.0 -> gds3280.dll
etc.
For UNIX-like systems by unix library versioning naming convenction.
IB4.0 -> libgds.so.4.0.x
IB5.5 -> libgds.so.5.5.x
etc.
Slavek

ing. Slavomir Skopalik DEL a.s.
Olomoucka 355 Marianske udoli 783 75
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Tel: 068 535 35 48
Mobil: 0602 795 874
Fax: 068 535 23 64
e-mail:skopalik@...