I found this tip very helpful to solve this problem(sorry cause I am an English learner, I am using Windows 10)
I tried to open the Slime Rancher but then I get the message ''The program can't start because MSVCP100.dll is missing from your computer.Try reinstalling the program to fix this problem'.Here is the solution that worked for me
Step 1: In the search box, type: Programs and Future then Enter.
Step 2: Find the program named:'Adobe Acrobat Reader DC.Keep the page open.
Step 3: Open your browser(Google Chrome, FireFox, ,..) then search'' Adobe Reader''.I will provide the link if you can't find(https://get.adobe.com/reader/).Check the information and if correct click 'Installs now'.
Step 4: Back to the Programs and Future, uninstall Adobe Acrobat Reader DC, it may ask for the Administrator, just click ok.Wait for it uninstalls and then restarts your computer.
Step 5: When your computer restart completely, go to where you downloaded the file.Click on it and wait for it Installs.
Step 6: Restart your computer again and then the problem should be fixed.
Thank you RobinPycock for helping me with this.
Now I can play Slime Rancher now.
Gook luck guys.