Hi

I am rather shamelessly requesting a batch file to do the following -

I have an executable file 'XYZ.exe' that can be accessed by multiple users over a LAN system. It seems that when this file is opened, it creates a clone of itself to a file with another name with .TMP extension and then the Rxyz.tmp file is destroyed and the executable opens. All this takes a fraction of a second. If, however, another user in the LAN attempts to open 'XYZ.exe' before this conversion re-conversion process is complete, the executable 'XYZ.exe' gets left with the .tmp extension and is essentially corrupted showing 0B.

To circumvent this (workaround), the user could be asked to click on the batch file I am requesting instead of on the executable 'XYZ.exe'.

The batch file will reside in the same folder as 'XYZ.exe'.
When opened, it should ..
1. Check for text file 'CheckTime.txt' in the same folder
2. If not existing, it should create it and immediately open the file 'XYZ.exe'
3. If 'CheckTime.txt' is found to be already existing, then the date+time modified should be compared with now and if, say, 6 seconds have not elapsed, the batch should wait until 6 seconds after 'CheckTime.txt' was last modified and then open 'XYZ.exe'
4. Batch file closes, LEAVING only the opened 'XYZ.exe'

The above may be RELATIVELY easy. The twist is ---what if a third user tries to open 'XYZ.exe' via this batch at around the same time?

Any help would be appreciated.

Regards
Look into the commands
attrib
set /p _=<_
goto :_
start
The file XYZ.exe - is that a compiled batch file?Quote from: foxidrive on September 30, 2013, 05:54:05 PM

The file XYZ.exe - is that a compiled batch file?

If the users launch this then it could be all you need.

Code: [Select]@echo off
:loop
If exist Rxyz.tmp echo waiting & timeout 1 & :goto loop
start "" xyz.exe

Thank you, makes sense but the .tmp file name is not always consistent. Therefore, either *.tmp or R*.tmp or ??.tmp if I was sure about the temp file name's length or the original request for a batch file.

Also, please confirm that if say, there are 5 PCS on the LAN and more than one user clicks on the short-cut to the new batch file at practically the same time, the batch file will do the needful?

The other suggestion I made would solve that for any number of users, if the file can be executed in another folder.

In that case it's a little simpler. This is meant to

A) generate a random number,
B) copy the XYZ executable to that new name and launch it,
C) wait until the program is closed and then delete the temporary copy.

A drawback is that an extra cmd window will be on the desktop while the XYZ program is active.


One workaround for the cmd window is to launch the files normally - and in a scheduled task remove all the temporary executables once a day.


This batch file will remove all the temporary executables.

Code: [Select]@echo off
del "d:\folder\xyz-temp-*"