oh ok, didnt understand you, no it should not break it, so in the full string it should only be up to 10 digits and up to 10 letters regardless of the - or _
numbers and letters can take any position as long as theres at least 1 letter and 1 number and maximum 10 of each. so 123456-78901 is not allowed but 123456-78901a would be. Also yes a-zA-Z
last question. Is it the same for framework 4.7.2? can i do the same in the same way? i just notices the "Publish" or the "Pack" options dont appear in the conetxt menu