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OK, more investigation into this has clarified the fault a bit more, and it might be a fault in PowerBuilder itself. I knocked up a very simple window as follows (using 'Edit Source'): forward global type call341187 from window end type type cb_2 from commandbutton within call341187 end type...

Thanks mbalent .... that's what I'd normally do but I have even seen this failure on lines that check the object for validity / nullness (if there is such a word). Investigating another one this morning shows it happening on the line marked in red: //Setting the wlrn value to the data currency...

Thanks bernds44, It's a bit tricky to post code as it's spattered all over the place in little functions, etc. but we're not using ActiveX controls at all AFAIK. However, I do think it could be tied up with calls to what we call the "Data Currency Server" which uses the ExecRemote() method...

Another anti-virus package you might like to consider is this: http://www.avira.com/en/pages/index.php - Anti-Vir. In addition to antivirus software (some good products have already been recommended), you'll also need to make sure some anti-spyware software is in place to protect against other...

Hi folks, This is kind of a follow-on from thread144-888205 but I'm not convinced it is necessarily tied up with DDE. We're getting customers report strange "Null object reference" errors on a sporadic basis. It is always the same line that will fail (if it fails at all) and the failures are...

I'd concur that this is unlikely to be a BusinessObjects issue per se. Check the SQL as suggested .... and check the universe to see how the SQL is being built. Pointers: If you have an outer join to a view that joins large tables, this can cause slowness. Typically, I yank out the raw SQL...

Hi all, mbalent, curiously enough, even performing an IsValid caused a Null Object Reference on the object it was testing for validity! IsNull did the same thing. LondonUnderpaid, I eventually found the setting to change the timeout and bumped it to an unrealistically high value - again and...

Regenerating the object sometimes resolves this sort of problem - try regenerating the datawindow and main window (in that order). If this doesn't work, you could try exporting the datawindow (is export available in PB5? I've only used 6.5, 8, and now 9), deleting it, and re-importing it. If...

Thanks Imbalent Unfortunately the very test for IsValid (or even IsNull) has no effect - I get the very same abort. One of the dirty tricks I've tried is to set up an instance variable (called ib_nasty_kludgearound (!)) and initialise it to FALSE. It gets set to TRUE when the object that is...

Hi all, I'm getting strange whitebox system errors reporting "null object references" where they should not occur. The code is perfectly OK, and the errors are sporadic and not reproducible on demand. The configuration is a PowerBuilder 8 application communicating with a "data currency...

OK, old thread now, I know. But this might still help... Those O1 hosts entries are the result of a CoolWebSearch ingfection. Have you run the utility called CoolWebSearch? http://www.spywareinfo.com/~merijn/files/CWShredder.exe Download it, close all browser and Explorer windows, and run...

I use the freeware Spybot Search and Destroy, coupled with the free AdAware to zap spyware and the like. Spybot Search and destroy can be downloaded from here: http://www.safer-networking.org/index.php?page=spybotsd Ad-Aware can be downloaded from here...

Hi, I'm unable to get a JPEG or GIF image to render in PowerBuilder using an OLE object. I'm using PowerBuilder 8.0, build 9838 (but I also had the problem under PB6.5). I get the icon representing the data type instead of the actual image itself. I'm using NT4.0 Workstation. Some customers...