Causes of SAMPLES_INTERNET_JAVA_SECURITY_CUSTOM_SAMPLE_signedapplet.Cab Errors SAMPLES_INTERNET_JAVA_SECURITY_CUSTOM_SAMPLE_signedapplet.Cab problems can be attributed to corrupt or missing files, invalid registry entries associated with SAMPLES_INTERNET_JAVA_SECURITY_CUSTOM_SAMPLE_signedapplet.Cab, or a virus / malware infection.