vjslib.dll errors while building my old projects and solutions on a new computer are all because of the applications that I should have installed earlier on my new laptop.
vjslib.dll includes the necessary namespaces, classes and methods that a .NET Framework developer can use while
compressing files into .zip archives and
uncompressing .zip files back.
Since I have not installed the
Microsoft Visual J# Version 2.0 Redistributable Package after I have installed the MS Visual Studio 2008, vjslib.dll file was not exist on the Windows folders.
You can check if vjslib.dll exists or installed on your computer by browsing the .NET Framework 2.0 folders under the system folders :
C:\WINNT\Microsoft.NET\Framework\v2.0.50727
To resolve this problem, I have downloaded
vjredist.exe from Microsoft Downloads
Microsoft Visual J# Version 2.0 Redistributable Package and installed the setup.