I am not using Instant Client -- I am using a full Enterprise Edition install. Here is the support info (if it matters, I was connected using the ORACLE_HOME variable at the time).
--- Info ---
PL/SQL Developer
Version 7.0.0.1050 (MBCS)
01.32396 - 1 user license
Windows XP version 6.0 (build 2600) Service Pack 2
Physical memory : 2,088,304 kB (1,198,296 available)
Paging file : 4,030,848 kB (3,246,672 available)
Virtual memory : 2,097,024 kB (1,996,296 available)
Parameters
C:\Program Files\PLSQL Developer\plsqldev.exe
Preferences
Session mode: Multi
OCI Library:
Use OCI7: False
Plug-Ins
Aliases
ats-sun7
BIGIP_TEST
crprd
DSHBPROD
emea_dms
...
Homes
OraDb10g_home1 (C:\oracle\product\10.1.0.0)
DLLs
C:\oracle\product\10.1.0.0\bin\oci.dll
TNS File
C:\oracle\product\10.1.0.0\Network\Admin\tnsnames.ora
Using
Home: OraDb10g_home1
DLL: C:\oracle\product\10.1.0.0\bin\oci.dll
OCI: version 9.2
Oracle Database 10g Enterprise Edition Release 10.1.0.4.2
Character size: 3 byte(s)
--- Registry ---
SOFTWARE\ORACLE
inst_loc = C:\Program Files\Oracle\Inventory
ORA_CRS_HOME = C:\oracle\product\10.1.0.0
SOFTWARE\ORACLE\Calendar
Version = 10.1.1.0.0
AppPath = C:\Program Files\Oracle\Calendar\
SOFTWARE\ORACLE\Desktop Sharing Run-Time
SOFTWARE\ORACLE\Desktop Sharing Run-Time\Driver Usage
{6EC12D06-9C55-4609-9105-C33093D5717C} =
SOFTWARE\ORACLE\KEY_OraDb10g_home1
ORACLE_HOME = C:\oracle\product\10.1.0.0
ORACLE_HOME_NAME = OraDb10g_home1
ORACLE_GROUP_NAME = Oracle - OraDb10g_home1
ORACLE_BUNDLE_NAME = Enterprise
NLS_LANG = AMERICAN_AMERICA.WE8MSWIN1252
OLEDB = C:\oracle\product\10.1.0.0\oledb\mesg
OO4O = C:\oracle\product\10.1.0.0\oo4o\mesg
SQLPATH = C:\oracle\product\10.1.0.0\dbs
ORACLE_HOME_KEY = SOFTWARE\ORACLE\KEY_OraDb10g_home1
ORACLE_BASE = C:\oracle\product
MSHELP_TOOLS = C:\oracle\product\10.1.0.0\MSHELP
RDBMS_CONTROL = C:\oracle\product\10.1.0.0\DATABASE
RDBMS_ARCHIVE = C:\oracle\product\10.1.0.0\DATABASE\ARCHIVE
ORA_RUPERT_AUTOSTART = TRUE
ORA_RUPERT_SHUTDOWN = TRUE
ORA_RUPERT_SHUTDOWNTYPE = immediate
ORA_RUPERT_SHUTDOWN_TIMEOUT = 90
ORACLE_SID = rupert
SOFTWARE\ORACLE\KEY_OraDb10g_home1\ODP.NET
TraceFileName = C:\ODPNET.trc
TraceLevel = 0
TraceOption = 0
SOFTWARE\ORACLE\KEY_OraDb10g_home1\OLEDB
CacheType = Memory
ChunkSize = 100
DistribTX = 1
FetchSize = 100
OSAuthent = 0
PLSQLRset = 0
PwdChgDlg = 1
SchRstLng = 10000
UserDefFn = 0
DisableRetClause = 1
VCharNull = 1
TraceCategory = 0
TraceFileName = c:\OraOLEDB.trc
TraceLevel = 0
TraceOption = 0
SPPrmDefVal = 0
SOFTWARE\ORACLE\KEY_OraDb10g_home1\OO4O
CacheBlocks = 20
FetchLimit = 100
FetchSize = 4096
HelpFile = C:\oracle\product\10.1.0.0\oo4o\doc\oracleo.hlp
PerBlock = 16
SliceSize = 256
TempFileDirectory = c:\temp
OO4O_HOME = C:\oracle\product\10.1.0.0\oo4o
SOFTWARE\ORACLE\Messenger
Fatal URL =
http://rtc.oracle.com/imtapp/im/messenger/omreport.jsp
SOFTWARE\ORACLE\Messenger\Modules
SOFTWARE\ORACLE\Messenger\Setup
source_dir = C:\DOCUME~1\swegner\LOCALS~1\Temp\RWT7284.tmp
dest dir = C:\Program Files\Oracle\Messenger
auto_update =
SOFTWARE\ORACLE\Ocr
ocrconfig_loc = C:\oracle\product\10.1.0.0\cdata\localhost\local.ocr
Local_Only = TRUE
SOFTWARE\ORACLE\Outlook Connector
SOFTWARE\ORACLE\Outlook Connector\3.6
AppPath = C:\Program Files\Oracle\Outlook Connector
CompanyName = Oracle Corporation
InstallKey =
SyncLog = Send Log Version = 10.1.2.0.0
Label =
NoAccounts = InstallDate = 03070225105
UserID =
UserName = user
CfgSettings =
SOFTWARE\ORACLE\RTC
SOFTWARE\ORACLE\RTC\OfficeAddin
FormName = RTCConference
InstallPath = C:\Program Files\Oracle\RTC Addin\
InstallState = SCFBytes = IPM.Appointment.RTCConference SNBytes = IPM.Note.RDNoteReadPage
SRBytes = IPM.Appointment.RTCConference
OutlookVersion =
SOFTWARE\ORACLE\RTC\ServiceHub
ServerURL =
http://strtc.oracle.com
cchecklast =