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Title
What's the difference between error code -18 and -5.

Summary

This article explains the difference between error code -18 and -5.

Question

When use lc_checkout() to check out feature which doesn't exists, in most cases, it return -18, but some time, it return -5. What's the difference of error code -18 and -5? And under what condition, -18 and -5 are returned?

Answer

Error code -18 is used in floating licensing(which has license server involved). Client accesses license server and tries to check out license. If the license server is available but specified feature doesn't exist, error code -18 will be returned by lc_checkout().
Error code -5 can be considered to be used in nodelock licensing. For example, if lc_checkout() tries to check out license from nodelock license file and the specified feature doesn't exist. Error code -5 will be returned by lc_checkout().
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What's the difference between error code -18 and -5.