You could ask for a letter of credit which will spell out the conditions under which payment has to be made. Make sure that the termns are clear. Your bank should be able to tell you how letters of credit work.

Loading all those assemblies, of which you may only use 1%, will certainly take time. Try .net core and only load what you need You can disable client side debugging in VS2017 This may help a little. For a complete fix you may need to change your computer and employer as well.

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