WORKAROUND
Extract the sqlnav_6.7.msi from "SQL Navigator for Oracle 6.7.0 Commercial.exe" and then run the msi to install sqlnavigator:
1. copy "SQL Navigator for Oracle 6.7.0 Commercial.exe" to a system that has C drive;
2. run the command line below in the system that "SQL Navigator for Oracle 6.7.0 Commercial.exe" is copied to (e.g. C:\SQL Navigator for Oracle 6.7.0 Commercial.exe):
"C:\SQL Navigator for Oracle 6.7.0 Commercial.exe" /extract
when the command is executed, Quest installer will be initialized and allow user to extract products from the exe bundle.
4. choose a path for Extraction Folder and click Next
5. select SQL Navigator for Oracle from the list and click Extract
6. when it finishes, open the extraction folder and find sqlnav_6.7.0.2372.msi under \SQL_Navigator_Oracle\6_7_0_2372
7. now copy this msi back to the Citrix server and run it to install sql navigator
8. Change the "Product Installation Directory" by clicking the folder icon in the bottom right corner in the "Select the Product to Install" window of the installation wizard.
STATUS
Waiting for fix in a future release of SQL Navigator for Oracle
