This content has been marked as final. Show 4 replies
As noted, install a supported version of the client, such as 11gR2. The 11gR2 client can access databases as old as 220.127.116.11.
Also, Oracle installs typically do not like spaces in directory names/paths. See Step 9 here - http://docs.oracle.com/cd/E11882_01/install.112/e24187/install.htm#BABEHAFJ
The minimum supported version for windows 7 is 10.2.0.5. Unsupported version may work, but it will create unexpected issues.
How to Install Oracle 10gR2 on MS Windows 7/Windows 2008R2 (Doc ID 1173433.1)