I inherited a library's source code via an escrow process back in the 90s when the vendor went out of business. It was written in C and came with no documentati

I inherited a library's source code via an escrow process back in the 90s when the vendor went out of business. It was written in C and came with no documentation. It took a while to get the thing to build and understand where all the pieces were, but it wasn't too bad after that initial ramp up. I ended up maintaining that code for many years, doing everything from porting from x.25 to tcp/ip to making changes to the application layer protocol to keep up with industry changes. My favorite memory was a comment I found buried in an exception handling section of code: /* We would like to think that this would work well */ All in all, the escrow process was worth it for us as it was a critical piece of functionality that would have been difficult to replace otherwise.