For instructions on registering DLL files in Windows 98, XP, Vista, 7:
If you have a bug related to files * .dll and * .ocx, you must:
1. Check for the required file system. Files * .dll and * .ocx, as a rule, should be located in the system folder C: \ WINDOWS \ system32.
If the files are present, you need to register them.
- Press the "Start / Run" or press the key combination Win + R
- Enter regsvr32 cygwin1.dll (example: regsvr32 cygwin1.dll)
- To restart a computer
2. If the required file is not present, look for them on the site, download and copy the folder C: \ WINDOWS \ system32 and register as stated in the first paragraph.

How to download free cygwin1.dll?

If you have an error message, saying that cygwin1.dll file is missing, damaged, lost, required, or Cygwin® POSIX Emulation DLL "run the program is not possible, because the computer does not cygwin1.dll", "cygwin1.dll not was found "(" cygwin1.dll not found "), then download cygwin1.dll file and copy it to the folder" c: / windows / system32 "(if Windows is installed on drive C). Then restart your computer.