How to concatenate parameters in windows batch

(%Major% =10, %MINOR%=5)

set “allBuild=%Major%%MINOR%”

echo %allBuild%

(you get “105”)

set “allBuild=%Major%.%MINOR%”

echo %allBuild%

(you get “10.5”)




Run c# program In Jenkins, cannot save Excel files

Usually get this error:

System.Runtime.InteropServices.COMException (0x800A03EC): Microsoft Excel cannot open or save any more documents

After SaveAs method


to solve this problem do this works:

  1. Create directory “C:\Windows\SysWOW64\config\systemprofile\Desktop ” (for 64 bit Windows) or “C:\Windows\System32\config\systemprofile\Desktop ” (for 32 bit Windows)
  2. Set Full control permissions for directory Desktop (for example in Win7 & IIS 7 & DefaultAppPool set permissions for user
    “IIS AppPool\DefaultAppPool”


See here foe more details: