Resolve "System.Data.OracleClient requires Oracle client software 8.1.7 or later"

IIS Server error: System.Data.OracleClient requires Oracle client software 8.1.7 or later.

Cause of the error:

1. Although it is reported that you need to install the client 8.1.7 and above, it is actually because the. NET account does not have access to the Oracle\bin folder

2. Advanced access security is provided in the NTFS system of Windows Server 2003/2008 or Windows XP, and the FAT32 system may not have this problem.

The solution is as follows:

I use Windows Server 2008 as an example Windows Server 2003 and Windows XP are the same

1. Open the computer with the Oracle client installed, and on the install Directory C:\oracle\ora90\BIN folder, right-click on "Security tab-Edit---" to add.

2. Click "Look in", select "Ntwork SERVICE" in the account shown below----Assign the "Read and execute" permission to him (if not, give him full control, this is not safe), subfolders inherit this permission, OK.

3. Open "Server Manager"-"configuration-Local Users and Groups-" group-"adminisgrators-" Add the network Service in

4. Restart IIS, or enter "IISRESET" in "Run".

Run the Web page in IIS now, look, it's done!

Resolve "System.Data.OracleClient requires Oracle client software 8.1.7 or later"