Hi,
I have a Workbook where I use VBA function to compare two imported tables consisting of around 10,000 rows (plus or minus). It takes around 90 seconds at the moment. But with the number of rows set to gradually to increase in the future, the client is starting to complain. I need to improve the performance, so I am looking at creating an Add-in probably using C or C++. But, after reading up on the topic for a few weeks, I am confused. There seems to be many options I can choose from (and there may be even more, I don't know about): - Create an XLL using C/C++ - Create a VB COM Add-in implementing the IDTExensibility2 interface - Create a C++ COM Add-in implementing the IDTExensibility2 interface - Create a C/C++ Add-in using the OLE 2 IDispatch Interface But which is the right one? Can anyone suggest the best path to follow to get the best results? Thanks Jimmy -- Are you =EXP(E:RT) or =NOT(EXP(E:RT)) in Excel? And do you wanna be? It’s =TIME(2,DO:IT,N:OW) ! Join official Facebook page of this forum @ https://www.facebook.com/discussexcel FORUM RULES 1) Use concise, accurate thread titles. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will not get quick attention or may not be answered. 2) Don't post a question in the thread of another member. 3) Don't post questions regarding breaking or bypassing any security measure. 4) Acknowledge the responses you receive, good or bad. 5) Jobs posting is not allowed. 6) Sharing copyrighted material and their links is not allowed. NOTE : Don't ever post confidential data in a workbook. Forum owners and members are not responsible for any loss. --- You received this message because you are subscribed to the Google Groups "MS EXCEL AND VBA MACROS" group. To unsubscribe from this group and stop receiving emails from it, send an email to excel-macros+unsubscr...@googlegroups.com. To post to this group, send email to excel-macros@googlegroups.com. Visit this group at http://groups.google.com/group/excel-macros. For more options, visit https://groups.google.com/d/optout.