After upgrading SilkTest, why does a Testcase that calls functions created with the Extension Kit, fail with the message "Incorrect number of arguments"?
It is imperative that the version of "assist.dll" exactly matches the version of SilkTest.
If "assist.dll" is included in your application directory, then the new version of "assist.dll" must be copied when you change versions of SilkTest.
In addition, if "assist.lib" is statically linked into your extension DLL, then you must rebuild your extension DLL when you change versions of SilkTest.
Thus it will be easier to maintain your extension DLL if you dynamically load "assist.dll".