Since upgrading to SilkTest 6.5, the "Enable Extensions" button on the Workflow Toolbar can no longer by used
This is a configuration problem. What seems to be occurring is that there can be two Jar files being loaded into the JVM. When using Silk Test 6.5, only one jar file should be loaded.
To confirm this, you will need to go to the /lib or /lib/ext directory, where there should only be one jar file. If your JVM is greater than 1.3, then this folder should contain the SilkTest_Java3.jar file. If the SilkTest_Java2.jar file is in the folder, first close down your application under test and then you will need to remove the SilkTest_Java2.jar file from the folder.
Once this has been done, you can now restart your Application under test and it should be possible to use the "Enable Extensions" pushbutton on the Workflow Toolbar to set your extensions correctly.